Pavlović, Mirjana S.

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  • Pavlović, Mirjana S. (44)

Author's Bibliography

Properties of Argon-Nitrogen Atmospheric Pressure DC Arc Plasma

Ranković, Dragan; Kuzmanović, Miroslav M.; Pavlović, Mirjana S.; Stoiljković, Milovan; Savović, Jelena

(2015)

TY  - JOUR
AU  - Ranković, Dragan
AU  - Kuzmanović, Miroslav M.
AU  - Pavlović, Mirjana S.
AU  - Stoiljković, Milovan
AU  - Savović, Jelena
PY  - 2015
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/774
AB  - The effect of nitrogen addition (1-20 %) on atmospheric argon DC arc plasma parameters was investigated. Nitrogen was added to three initial plasma gas compositions: pure argon gas, argon gas with water aerosol, and argon gas with water aerosol containing 0.5 % KCl. Admixtures of nitrogen from 1 up to 10 % (in the case of Ar-N-2-water aerosol plasma) or up to 5 % (in the presence of 0.5 % KCl) produced a more contracted discharge, with larger gradients of electron number density and temperature, as compared to plasma without molecular gas addition. The opposite effect was observed in gas mixtures with 20 % of nitrogen. In that case, the arc core was expanded, and the radial profile of electron density and temperature became flatter as compared to the case of pure argon plasma. The changes in the radial structure of the discharge could be explained by increased thermal conductivity of mixed gas plasma and the presence of molecular ions. Increasing nitrogen content brings plasma closer to thermal equilibrium. To evaluate the effect of nitrogen upon analytic performance of the arc source, limits of detection (LODs) were measured for Zn, Cu, Li, and Rb. In plasma without KCl, the addition of nitrogen resulted in lowering of LODs for Cu, Li and Rb, while the opposite was observed for Zn. In the presence of KCl the addition of nitrogen had little or no effect on LODs for Cu, Li and Rb, while detection limits for Zn were increased.
T2  - Plasma Chemistry and Plasma Processing
T1  - Properties of Argon-Nitrogen Atmospheric Pressure DC Arc Plasma
VL  - 35
IS  - 6
SP  - 1071
EP  - 1095
DO  - 10.1007/s11090-015-9637-6
ER  - 
@article{
author = "Ranković, Dragan and Kuzmanović, Miroslav M. and Pavlović, Mirjana S. and Stoiljković, Milovan and Savović, Jelena",
year = "2015",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/774",
abstract = "The effect of nitrogen addition (1-20 %) on atmospheric argon DC arc plasma parameters was investigated. Nitrogen was added to three initial plasma gas compositions: pure argon gas, argon gas with water aerosol, and argon gas with water aerosol containing 0.5 % KCl. Admixtures of nitrogen from 1 up to 10 % (in the case of Ar-N-2-water aerosol plasma) or up to 5 % (in the presence of 0.5 % KCl) produced a more contracted discharge, with larger gradients of electron number density and temperature, as compared to plasma without molecular gas addition. The opposite effect was observed in gas mixtures with 20 % of nitrogen. In that case, the arc core was expanded, and the radial profile of electron density and temperature became flatter as compared to the case of pure argon plasma. The changes in the radial structure of the discharge could be explained by increased thermal conductivity of mixed gas plasma and the presence of molecular ions. Increasing nitrogen content brings plasma closer to thermal equilibrium. To evaluate the effect of nitrogen upon analytic performance of the arc source, limits of detection (LODs) were measured for Zn, Cu, Li, and Rb. In plasma without KCl, the addition of nitrogen resulted in lowering of LODs for Cu, Li and Rb, while the opposite was observed for Zn. In the presence of KCl the addition of nitrogen had little or no effect on LODs for Cu, Li and Rb, while detection limits for Zn were increased.",
journal = "Plasma Chemistry and Plasma Processing",
title = "Properties of Argon-Nitrogen Atmospheric Pressure DC Arc Plasma",
volume = "35",
number = "6",
pages = "1071-1095",
doi = "10.1007/s11090-015-9637-6"
}
Ranković, D., Kuzmanović, M. M., Pavlović, M. S., Stoiljković, M.,& Savović, J. (2015). Properties of Argon-Nitrogen Atmospheric Pressure DC Arc Plasma.
Plasma Chemistry and Plasma Processing, 35(6), 1071-1095.
https://doi.org/10.1007/s11090-015-9637-6
Ranković D, Kuzmanović MM, Pavlović MS, Stoiljković M, Savović J. Properties of Argon-Nitrogen Atmospheric Pressure DC Arc Plasma. Plasma Chemistry and Plasma Processing. 2015;35(6):1071-1095
Ranković Dragan, Kuzmanović Miroslav M., Pavlović Mirjana S., Stoiljković Milovan, Savović Jelena, "Properties of Argon-Nitrogen Atmospheric Pressure DC Arc Plasma" Plasma Chemistry and Plasma Processing, 35, no. 6 (2015):1071-1095,
https://doi.org/10.1007/s11090-015-9637-6 .
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Properties of plasma induced by pulsed CO2 laser on a copper target under different ambient conditions

Kuzmanović, Miroslav M.; Momčilović, Miloš; Ciganović, Jovan; Rankovic, D.; Savović, Jelena; Milovanović, Dubravka S.; Stoiljković, Milovan; Pavlović, Mirjana S.; Trtica, Milan

(2014)

TY  - JOUR
AU  - Kuzmanović, Miroslav M.
AU  - Momčilović, Miloš
AU  - Ciganović, Jovan
AU  - Rankovic, D.
AU  - Savović, Jelena
AU  - Milovanović, Dubravka S.
AU  - Stoiljković, Milovan
AU  - Pavlović, Mirjana S.
AU  - Trtica, Milan
PY  - 2014
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/7056
AB  - Optical emission spectroscopy was applied for investigation of copper plasma induced by a nanosecond transversely excited atmospheric CO2 laser, operating at 10.6 mu m. The effect of the background gas (air, Ar, He and N-2) and pressure (1-25 mbar) on plasma formation was examined. The plasma shielding effect was more pronounced for background gases with lower ionization potential than for He. The increase of He pressure from 1 to 25 mbar resulted in fivefold increase of Cu atomic line intensity.
T2  - Physica Scripta
T1  - Properties of plasma induced by pulsed CO2 laser on a copper target under different ambient conditions
VL  - T162
DO  - 10.1088/0031-8949/2014/T162/014011
ER  - 
@article{
author = "Kuzmanović, Miroslav M. and Momčilović, Miloš and Ciganović, Jovan and Rankovic, D. and Savović, Jelena and Milovanović, Dubravka S. and Stoiljković, Milovan and Pavlović, Mirjana S. and Trtica, Milan",
year = "2014",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/7056",
abstract = "Optical emission spectroscopy was applied for investigation of copper plasma induced by a nanosecond transversely excited atmospheric CO2 laser, operating at 10.6 mu m. The effect of the background gas (air, Ar, He and N-2) and pressure (1-25 mbar) on plasma formation was examined. The plasma shielding effect was more pronounced for background gases with lower ionization potential than for He. The increase of He pressure from 1 to 25 mbar resulted in fivefold increase of Cu atomic line intensity.",
journal = "Physica Scripta",
title = "Properties of plasma induced by pulsed CO2 laser on a copper target under different ambient conditions",
volume = "T162",
doi = "10.1088/0031-8949/2014/T162/014011"
}
Kuzmanović, M. M., Momčilović, M., Ciganović, J., Rankovic, D., Savović, J., Milovanović, D. S., Stoiljković, M., Pavlović, M. S.,& Trtica, M. (2014). Properties of plasma induced by pulsed CO2 laser on a copper target under different ambient conditions.
Physica Scripta, T162.
https://doi.org/10.1088/0031-8949/2014/T162/014011
Kuzmanović MM, Momčilović M, Ciganović J, Rankovic D, Savović J, Milovanović DS, Stoiljković M, Pavlović MS, Trtica M. Properties of plasma induced by pulsed CO2 laser on a copper target under different ambient conditions. Physica Scripta. 2014;T162
Kuzmanović Miroslav M., Momčilović Miloš, Ciganović Jovan, Rankovic D., Savović Jelena, Milovanović Dubravka S., Stoiljković Milovan, Pavlović Mirjana S., Trtica Milan, "Properties of plasma induced by pulsed CO2 laser on a copper target under different ambient conditions" Physica Scripta, T162 (2014),
https://doi.org/10.1088/0031-8949/2014/T162/014011 .
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Desorption of Metals from Cetraria Islandica (L.) Ach. Lichen Using Solutions Simulating Acid Rain

Cuculovic, Ana A.; Pavlović, Mirjana S.; Savović, Jelena; Veselinović, Dragan S.

(2014)

TY  - JOUR
AU  - Cuculovic, Ana A.
AU  - Pavlović, Mirjana S.
AU  - Savović, Jelena
AU  - Veselinović, Dragan S.
PY  - 2014
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5859
AB  - Desorption of metals K, Al, Ca, Mg, Fe, Ba, Zn, Mn, Cu and Sr from Cetraria islandica (L.) with solutions whose composition was similar to that of acid rain, was investigated. Desorption of metals from the lichen was performed by five successive desorption processes. Solution mixtures containing H2SO4, HNO3 and H2SO4-HNO3 were used for desorption. Each solution had three different pH values: 4.61, 5.15 and 5.75, so that the desorptions were performed with nine different solutions successively five times, always using the same solution volume. The investigated metals can be divided into two groups. One group was comprised of K, Ca and Mg, which were desorbed in each of the five desorption processes at all pH values used. The second group included Al, Fe, Zn, Ba, Mn and Sr; these were not desorbed in each individual desorption and not at all pH values, whereas Cu was not desorbed at all under any circumstances. Using the logarithmic dependence of the metal content as a function of the desorption number, it was found that potassium builds two types of links and is connected with weaker links in lichen. Potassium is completely desorbed, 80% in the first desorption, and then gradually in the following desorptions. Other metals are linked with one weaker link (desorption 1-38%) and with one very strong link (desorption below the metal detection limit).
T2  - Archives of biological sciences
T1  - Desorption of Metals from Cetraria Islandica (L.) Ach. Lichen Using Solutions Simulating Acid Rain
VL  - 66
IS  - 1
SP  - 273
EP  - 284
DO  - 10.2298/ABS1401273C
ER  - 
@article{
author = "Cuculovic, Ana A. and Pavlović, Mirjana S. and Savović, Jelena and Veselinović, Dragan S.",
year = "2014",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5859",
abstract = "Desorption of metals K, Al, Ca, Mg, Fe, Ba, Zn, Mn, Cu and Sr from Cetraria islandica (L.) with solutions whose composition was similar to that of acid rain, was investigated. Desorption of metals from the lichen was performed by five successive desorption processes. Solution mixtures containing H2SO4, HNO3 and H2SO4-HNO3 were used for desorption. Each solution had three different pH values: 4.61, 5.15 and 5.75, so that the desorptions were performed with nine different solutions successively five times, always using the same solution volume. The investigated metals can be divided into two groups. One group was comprised of K, Ca and Mg, which were desorbed in each of the five desorption processes at all pH values used. The second group included Al, Fe, Zn, Ba, Mn and Sr; these were not desorbed in each individual desorption and not at all pH values, whereas Cu was not desorbed at all under any circumstances. Using the logarithmic dependence of the metal content as a function of the desorption number, it was found that potassium builds two types of links and is connected with weaker links in lichen. Potassium is completely desorbed, 80% in the first desorption, and then gradually in the following desorptions. Other metals are linked with one weaker link (desorption 1-38%) and with one very strong link (desorption below the metal detection limit).",
journal = "Archives of biological sciences",
title = "Desorption of Metals from Cetraria Islandica (L.) Ach. Lichen Using Solutions Simulating Acid Rain",
volume = "66",
number = "1",
pages = "273-284",
doi = "10.2298/ABS1401273C"
}
Cuculovic, A. A., Pavlović, M. S., Savović, J.,& Veselinović, D. S. (2014). Desorption of Metals from Cetraria Islandica (L.) Ach. Lichen Using Solutions Simulating Acid Rain.
Archives of biological sciences, 66(1), 273-284.
https://doi.org/10.2298/ABS1401273C
Cuculovic AA, Pavlović MS, Savović J, Veselinović DS. Desorption of Metals from Cetraria Islandica (L.) Ach. Lichen Using Solutions Simulating Acid Rain. Archives of biological sciences. 2014;66(1):273-284
Cuculovic Ana A., Pavlović Mirjana S., Savović Jelena, Veselinović Dragan S., "Desorption of Metals from Cetraria Islandica (L.) Ach. Lichen Using Solutions Simulating Acid Rain" Archives of biological sciences, 66, no. 1 (2014):273-284,
https://doi.org/10.2298/ABS1401273C .
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Preparation and characterization of clay-based porous ceramics with boric acid as additive

Kokunešoski, Maja; Šaponjić, Aleksandra; Maksimović, Vesna; Stankovic, Miroslav; Pavlović, Mirjana S.; Pantić, Jelena R.; Majstorovic, Jelena

(2014)

TY  - JOUR
AU  - Kokunešoski, Maja
AU  - Šaponjić, Aleksandra
AU  - Maksimović, Vesna
AU  - Stankovic, Miroslav
AU  - Pavlović, Mirjana S.
AU  - Pantić, Jelena R.
AU  - Majstorovic, Jelena
PY  - 2014
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/104
AB  - Intention of this work was to obtain porous silicon dioxide ceramics by using boric acid as an inexpensive additive at low forming pressure and low sintering temperature. Starting raw material, smectite clay from surface coal mine Kolubara, Serbia, was purified from organic and inorganic impurities by using heat and chemical treatment. Boric acid was used as binding and sintering aid in amount of 0.5, 1 and 2 wt%. Powder was compacted by using different pressures: 40, 60 and 80 MPa. Pressed samples were sintered at 850, 1000, 1150, and 1300 degrees C for 4 h in air. A relatively high porosity of nearly 40% is obtained for the samples pressed at 40, 60 and 80 MPa and sintered at 1000 degrees C. Median pore size diameters are in the range of macroporous up to 0.2 mu m and 10 mu m in the samples sintered at 1150 and 1300 degrees C, respectively. X-ray diffraction (XRD), scaning electron microscopy (SEM), and porosimetry measurements were employed to characterize the phases and microstructure of the obtained ceramics. The relations between mechanical characteristics of samples (Young modulus and Poisson ratio) and content of boric acid were studied. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
T2  - Ceramics International
T1  - Preparation and characterization of clay-based porous ceramics with boric acid as additive
VL  - 40
IS  - 9
SP  - 14191
EP  - 14196
DO  - 10.1016/j.ceramint.2014.06.007
ER  - 
@article{
author = "Kokunešoski, Maja and Šaponjić, Aleksandra and Maksimović, Vesna and Stankovic, Miroslav and Pavlović, Mirjana S. and Pantić, Jelena R. and Majstorovic, Jelena",
year = "2014",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/104",
abstract = "Intention of this work was to obtain porous silicon dioxide ceramics by using boric acid as an inexpensive additive at low forming pressure and low sintering temperature. Starting raw material, smectite clay from surface coal mine Kolubara, Serbia, was purified from organic and inorganic impurities by using heat and chemical treatment. Boric acid was used as binding and sintering aid in amount of 0.5, 1 and 2 wt%. Powder was compacted by using different pressures: 40, 60 and 80 MPa. Pressed samples were sintered at 850, 1000, 1150, and 1300 degrees C for 4 h in air. A relatively high porosity of nearly 40% is obtained for the samples pressed at 40, 60 and 80 MPa and sintered at 1000 degrees C. Median pore size diameters are in the range of macroporous up to 0.2 mu m and 10 mu m in the samples sintered at 1150 and 1300 degrees C, respectively. X-ray diffraction (XRD), scaning electron microscopy (SEM), and porosimetry measurements were employed to characterize the phases and microstructure of the obtained ceramics. The relations between mechanical characteristics of samples (Young modulus and Poisson ratio) and content of boric acid were studied. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
journal = "Ceramics International",
title = "Preparation and characterization of clay-based porous ceramics with boric acid as additive",
volume = "40",
number = "9",
pages = "14191-14196",
doi = "10.1016/j.ceramint.2014.06.007"
}
Kokunešoski, M., Šaponjić, A., Maksimović, V., Stankovic, M., Pavlović, M. S., Pantić, J. R.,& Majstorovic, J. (2014). Preparation and characterization of clay-based porous ceramics with boric acid as additive.
Ceramics International, 40(9), 14191-14196.
https://doi.org/10.1016/j.ceramint.2014.06.007
Kokunešoski M, Šaponjić A, Maksimović V, Stankovic M, Pavlović MS, Pantić JR, Majstorovic J. Preparation and characterization of clay-based porous ceramics with boric acid as additive. Ceramics International. 2014;40(9):14191-14196
Kokunešoski Maja, Šaponjić Aleksandra, Maksimović Vesna, Stankovic Miroslav, Pavlović Mirjana S., Pantić Jelena R., Majstorovic Jelena, "Preparation and characterization of clay-based porous ceramics with boric acid as additive" Ceramics International, 40, no. 9 (2014):14191-14196,
https://doi.org/10.1016/j.ceramint.2014.06.007 .
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The electron number density of argon-nitrogen atmospheric pressure plasma

Ranković, D.P.; Kuzmanović, Miroslav M.; Gaković, Biljana M.; Pavlović, Mirjana S.; Stoiljković, Milovan; Savović, Jelena

(Society of Physical Chemists of Serbia, 2012)

TY  - CONF
AU  - Ranković, D.P.
AU  - Kuzmanović, Miroslav M.
AU  - Gaković, Biljana M.
AU  - Pavlović, Mirjana S.
AU  - Stoiljković, Milovan
AU  - Savović, Jelena
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9265
AB  - In this study, the influence of nitrogen gas addition on argon plasma electron
number density was investigated. The plasma source is a wall stabilized direct
current arc burning in argon at atmospheric pressure with continual water aerosol
supply. To the argon gas carrying water aerosol a variable amounts (4, 8 and 11%)
of nitrogen was added. The addition of the molecular gas was carried out by
increasing the flow rate of the N2 and decreasing that of Ar, so that the total flow
rate of the mixed gas was constant 2.7 Lmin-1. The arc was operating in the current
intensity range 4 to 11 A. The electron number density was calculated from the
measured Stark profiles of Hβ 486.13 nm spectral line at the arc axis, for different
arc currents. The radial distribution of electron number density was obtained from
the measured radial profiles of Hβ line. The addition of the molecular gas to the
argon plasma resulted in considerable changes in electron number density.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2012 : 11th international conference on fundamental and applied aspects of physical chemistry
T1  - The electron number density of argon-nitrogen atmospheric pressure plasma
VL  - 1
SP  - 79
EP  - 81
ER  - 
@conference{
author = "Ranković, D.P. and Kuzmanović, Miroslav M. and Gaković, Biljana M. and Pavlović, Mirjana S. and Stoiljković, Milovan and Savović, Jelena",
year = "2012",
url = "https://vinar.vin.bg.ac.rs/handle/123456789/9265",
abstract = "In this study, the influence of nitrogen gas addition on argon plasma electron
number density was investigated. The plasma source is a wall stabilized direct
current arc burning in argon at atmospheric pressure with continual water aerosol
supply. To the argon gas carrying water aerosol a variable amounts (4, 8 and 11%)
of nitrogen was added. The addition of the molecular gas was carried out by
increasing the flow rate of the N2 and decreasing that of Ar, so that the total flow
rate of the mixed gas was constant 2.7 Lmin-1. The arc was operating in the current
intensity range 4 to 11 A. The electron number density was calculated from the
measured Stark profiles of Hβ 486.13 nm spectral line at the arc axis, for different
arc currents. The radial distribution of electron number density was obtained from
the measured radial profiles of Hβ line. The addition of the molecular gas to the
argon plasma resulted in considerable changes in electron number density.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2012 : 11th international conference on fundamental and applied aspects of physical chemistry",
title = "The electron number density of argon-nitrogen atmospheric pressure plasma",
volume = "1",
pages = "79-81"
}
Ranković, D.P., Kuzmanović, M. M., Gaković, B. M., Pavlović, M. S., Stoiljković, M.,& Savović, J. (2012). The electron number density of argon-nitrogen atmospheric pressure plasma.
Physical chemistry 2012 : 11th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia., 1, 79-81.
Ranković D, Kuzmanović MM, Gaković BM, Pavlović MS, Stoiljković M, Savović J. The electron number density of argon-nitrogen atmospheric pressure plasma. Physical chemistry 2012 : 11th international conference on fundamental and applied aspects of physical chemistry. 2012;1:79-81
Ranković D.P., Kuzmanović Miroslav M., Gaković Biljana M., Pavlović Mirjana S., Stoiljković Milovan, Savović Jelena, "The electron number density of argon-nitrogen atmospheric pressure plasma" Physical chemistry 2012 : 11th international conference on fundamental and applied aspects of physical chemistry, 1 (2012):79-81

Modelling the position of analyte emission maxima in low temperature direct current arc plasma using statistical procedures

Savović, Jelena; Pavlović, Mirjana S.; Stoiljković, Milovan; Kuzmanović, Miroslav M.; Momčilović, Miloš; Vasić, Vesna M.

(2012)

TY  - JOUR
AU  - Savović, Jelena
AU  - Pavlović, Mirjana S.
AU  - Stoiljković, Milovan
AU  - Kuzmanović, Miroslav M.
AU  - Momčilović, Miloš
AU  - Vasić, Vesna M.
PY  - 2012
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5026
AB  - In low temperature argon arc plasma, emission spectral lines of different analytes have characteristic radial distributions with emission maxima distributed over a wide plasma region, from the arc axis toward the arc periphery. It was assumed that the occurrence of emission maxima is a result of collective action of factors that control vaporization, dissociation, excitation, ionization and analyte transport. A statistical analysis was used to reveal a correlation between these various factors and a radial position of maximum emission. A regression analysis was used both for predictive and explanatory purposes: a model was built that successfully predicted analyte spatial emission characteristics, based on their physical properties and local plasma parameters, and a relative importance of proposed predictors was estimated. (C) 2012 Elsevier B.V. All rights reserved.
T2  - Spectrochimica Acta. Part B: Atomic Spectroscopy
T1  - Modelling the position of analyte emission maxima in low temperature direct current arc plasma using statistical procedures
VL  - 73
SP  - 62
EP  - 70
DO  - 10.1016/j.sab.2012.07.004
ER  - 
@article{
author = "Savović, Jelena and Pavlović, Mirjana S. and Stoiljković, Milovan and Kuzmanović, Miroslav M. and Momčilović, Miloš and Vasić, Vesna M.",
year = "2012",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5026",
abstract = "In low temperature argon arc plasma, emission spectral lines of different analytes have characteristic radial distributions with emission maxima distributed over a wide plasma region, from the arc axis toward the arc periphery. It was assumed that the occurrence of emission maxima is a result of collective action of factors that control vaporization, dissociation, excitation, ionization and analyte transport. A statistical analysis was used to reveal a correlation between these various factors and a radial position of maximum emission. A regression analysis was used both for predictive and explanatory purposes: a model was built that successfully predicted analyte spatial emission characteristics, based on their physical properties and local plasma parameters, and a relative importance of proposed predictors was estimated. (C) 2012 Elsevier B.V. All rights reserved.",
journal = "Spectrochimica Acta. Part B: Atomic Spectroscopy",
title = "Modelling the position of analyte emission maxima in low temperature direct current arc plasma using statistical procedures",
volume = "73",
pages = "62-70",
doi = "10.1016/j.sab.2012.07.004"
}
Savović, J., Pavlović, M. S., Stoiljković, M., Kuzmanović, M. M., Momčilović, M.,& Vasić, V. M. (2012). Modelling the position of analyte emission maxima in low temperature direct current arc plasma using statistical procedures.
Spectrochimica Acta. Part B: Atomic Spectroscopy, 73, 62-70.
https://doi.org/10.1016/j.sab.2012.07.004
Savović J, Pavlović MS, Stoiljković M, Kuzmanović MM, Momčilović M, Vasić VM. Modelling the position of analyte emission maxima in low temperature direct current arc plasma using statistical procedures. Spectrochimica Acta. Part B: Atomic Spectroscopy. 2012;73:62-70
Savović Jelena, Pavlović Mirjana S., Stoiljković Milovan, Kuzmanović Miroslav M., Momčilović Miloš, Vasić Vesna M., "Modelling the position of analyte emission maxima in low temperature direct current arc plasma using statistical procedures" Spectrochimica Acta. Part B: Atomic Spectroscopy, 73 (2012):62-70,
https://doi.org/10.1016/j.sab.2012.07.004 .

Synthesis of antimicrobial monophase silver-doped hydroxyapatite nanopowders for bone tissue engineering

Stanić, Vojislav; Janaćković, Đorđe T.; Dimitrijević, Suzana I.; Tanaskovic, Sladjana B.; Mitrić, Miodrag; Pavlović, Mirjana S.; Krstic, Aleksandra; Jovanovic, Dragoljub; Raičević, Slavica

(2011)

TY  - JOUR
AU  - Stanić, Vojislav
AU  - Janaćković, Đorđe T.
AU  - Dimitrijević, Suzana I.
AU  - Tanaskovic, Sladjana B.
AU  - Mitrić, Miodrag
AU  - Pavlović, Mirjana S.
AU  - Krstic, Aleksandra
AU  - Jovanovic, Dragoljub
AU  - Raičević, Slavica
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4194
AB  - Monophase silver-doped hydroxyapatite (AgxCa10-x(PO4)(6)(OH)(2); 0.002 LT = x LT = 0.04) nanoparticles were prepared using a neutralization method and investigated with respect to potential medical applications. This method consists of dissolving Ag2O in solution of H3PO4, and the slow addition to suspension of Ca(OH)(2) was applied for the purpose of homogenous distribution of silver ions. Characterization studies from XRD, TEM and FTIR spectra showed that obtained crystals are monophase hydroxyapatites and that particles of all samples are of nano size, with average length of 70nm and about 15-25nm in diameter. Antimicrobial studies have demonstrated that all silver-doped hydroxyapatite samples exhibit excellent antimicrobial activity in vitro against the following pathogens: Staphylococcus aureus, Escherichia coli and Candida albicans. The hydroxyapatite sample with the highest content of silver has shown the highest antimicrobial activity; killed all cells of E. coli and brought to more than 99% reduction in viable counts of S. aureus and C. albicans. The atomic force microscopic studies illustrate that silver-doped hydroxyapatite sample causes considerable morphological changes of microorganism cells which might be the cause of cells death. Hemolysis ratios of the silver-doped hydroxyapatite samples were below 3%, indicating good blood compatibility and that are promising as biomaterials. Crown Copyright (C) 2010 Published by Elsevier B. V. All rights reserved.
T2  - Applied Surface Science
T1  - Synthesis of antimicrobial monophase silver-doped hydroxyapatite nanopowders for bone tissue engineering
VL  - 257
IS  - 9
SP  - 4510
EP  - 4518
DO  - 10.1016/j.apsusc.2010.12.113
ER  - 
@article{
author = "Stanić, Vojislav and Janaćković, Đorđe T. and Dimitrijević, Suzana I. and Tanaskovic, Sladjana B. and Mitrić, Miodrag and Pavlović, Mirjana S. and Krstic, Aleksandra and Jovanovic, Dragoljub and Raičević, Slavica",
year = "2011",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4194",
abstract = "Monophase silver-doped hydroxyapatite (AgxCa10-x(PO4)(6)(OH)(2); 0.002 LT = x LT = 0.04) nanoparticles were prepared using a neutralization method and investigated with respect to potential medical applications. This method consists of dissolving Ag2O in solution of H3PO4, and the slow addition to suspension of Ca(OH)(2) was applied for the purpose of homogenous distribution of silver ions. Characterization studies from XRD, TEM and FTIR spectra showed that obtained crystals are monophase hydroxyapatites and that particles of all samples are of nano size, with average length of 70nm and about 15-25nm in diameter. Antimicrobial studies have demonstrated that all silver-doped hydroxyapatite samples exhibit excellent antimicrobial activity in vitro against the following pathogens: Staphylococcus aureus, Escherichia coli and Candida albicans. The hydroxyapatite sample with the highest content of silver has shown the highest antimicrobial activity; killed all cells of E. coli and brought to more than 99% reduction in viable counts of S. aureus and C. albicans. The atomic force microscopic studies illustrate that silver-doped hydroxyapatite sample causes considerable morphological changes of microorganism cells which might be the cause of cells death. Hemolysis ratios of the silver-doped hydroxyapatite samples were below 3%, indicating good blood compatibility and that are promising as biomaterials. Crown Copyright (C) 2010 Published by Elsevier B. V. All rights reserved.",
journal = "Applied Surface Science",
title = "Synthesis of antimicrobial monophase silver-doped hydroxyapatite nanopowders for bone tissue engineering",
volume = "257",
number = "9",
pages = "4510-4518",
doi = "10.1016/j.apsusc.2010.12.113"
}
Stanić, V., Janaćković, Đ. T., Dimitrijević, S. I., Tanaskovic, S. B., Mitrić, M., Pavlović, M. S., Krstic, A., Jovanovic, D.,& Raičević, S. (2011). Synthesis of antimicrobial monophase silver-doped hydroxyapatite nanopowders for bone tissue engineering.
Applied Surface Science, 257(9), 4510-4518.
https://doi.org/10.1016/j.apsusc.2010.12.113
Stanić V, Janaćković ĐT, Dimitrijević SI, Tanaskovic SB, Mitrić M, Pavlović MS, Krstic A, Jovanovic D, Raičević S. Synthesis of antimicrobial monophase silver-doped hydroxyapatite nanopowders for bone tissue engineering. Applied Surface Science. 2011;257(9):4510-4518
Stanić Vojislav, Janaćković Đorđe T., Dimitrijević Suzana I., Tanaskovic Sladjana B., Mitrić Miodrag, Pavlović Mirjana S., Krstic Aleksandra, Jovanovic Dragoljub, Raičević Slavica, "Synthesis of antimicrobial monophase silver-doped hydroxyapatite nanopowders for bone tissue engineering" Applied Surface Science, 257, no. 9 (2011):4510-4518,
https://doi.org/10.1016/j.apsusc.2010.12.113 .
3
171
165
184

Principal component analysis of the main factors of line intensity enhancements observed in oscillating direct current plasma

Stoiljković, Milovan; Pašti, Igor A.; Momčilović, Miloš; Savović, Jelena; Pavlović, Mirjana S.

(2010)

TY  - JOUR
AU  - Stoiljković, Milovan
AU  - Pašti, Igor A.
AU  - Momčilović, Miloš
AU  - Savović, Jelena
AU  - Pavlović, Mirjana S.
PY  - 2010
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4236
AB  - Enhancement of emission line intensities by induced oscillations of direct current (DC) arc plasma with continuous aerosol sample supply was investigated using multivariate statistics. Principal component analysis (PCA) was employed to evaluate enhancements of 34 atomic spectral lines belonging to 33 elements and 35 ionic spectral lines belonging to 23 elements. Correlation and classification of the elements were done not only by a single property such as the first ionization energy, but also by considering other relevant parameters. Special attention was paid to the influence of the oxide bond strength in an attempt to clarify/predict the enhancement effect. Energies of vaporization, atomization, and excitation were also considered in the analysis. In the case of atomic lines, the best correlation between the enhancements and first ionization energies was obtained as a negative correlation, with weak consistency in grouping of elements in score plots. Conversely, in the case of ionic lines, the best correlation of the enhancements with the sum of the first ionization energies and oxide bond energies was obtained as a positive correlation, with four distinctive groups of elements. The role of the gas-phase atom-oxide bond energy in the entire enhancement effect is underlined. (C) 2010 Elsevier B.V. All rights reserved.
T2  - Spectrochimica Acta. Part B: Atomic Spectroscopy
T1  - Principal component analysis of the main factors of line intensity enhancements observed in oscillating direct current plasma
VL  - 65
IS  - 11
SP  - 927
EP  - 934
DO  - 10.1016/j.sab.2010.09.002
ER  - 
@article{
author = "Stoiljković, Milovan and Pašti, Igor A. and Momčilović, Miloš and Savović, Jelena and Pavlović, Mirjana S.",
year = "2010",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4236",
abstract = "Enhancement of emission line intensities by induced oscillations of direct current (DC) arc plasma with continuous aerosol sample supply was investigated using multivariate statistics. Principal component analysis (PCA) was employed to evaluate enhancements of 34 atomic spectral lines belonging to 33 elements and 35 ionic spectral lines belonging to 23 elements. Correlation and classification of the elements were done not only by a single property such as the first ionization energy, but also by considering other relevant parameters. Special attention was paid to the influence of the oxide bond strength in an attempt to clarify/predict the enhancement effect. Energies of vaporization, atomization, and excitation were also considered in the analysis. In the case of atomic lines, the best correlation between the enhancements and first ionization energies was obtained as a negative correlation, with weak consistency in grouping of elements in score plots. Conversely, in the case of ionic lines, the best correlation of the enhancements with the sum of the first ionization energies and oxide bond energies was obtained as a positive correlation, with four distinctive groups of elements. The role of the gas-phase atom-oxide bond energy in the entire enhancement effect is underlined. (C) 2010 Elsevier B.V. All rights reserved.",
journal = "Spectrochimica Acta. Part B: Atomic Spectroscopy",
title = "Principal component analysis of the main factors of line intensity enhancements observed in oscillating direct current plasma",
volume = "65",
number = "11",
pages = "927-934",
doi = "10.1016/j.sab.2010.09.002"
}
Stoiljković, M., Pašti, I. A., Momčilović, M., Savović, J.,& Pavlović, M. S. (2010). Principal component analysis of the main factors of line intensity enhancements observed in oscillating direct current plasma.
Spectrochimica Acta. Part B: Atomic Spectroscopy, 65(11), 927-934.
https://doi.org/10.1016/j.sab.2010.09.002
Stoiljković M, Pašti IA, Momčilović M, Savović J, Pavlović MS. Principal component analysis of the main factors of line intensity enhancements observed in oscillating direct current plasma. Spectrochimica Acta. Part B: Atomic Spectroscopy. 2010;65(11):927-934
Stoiljković Milovan, Pašti Igor A., Momčilović Miloš, Savović Jelena, Pavlović Mirjana S., "Principal component analysis of the main factors of line intensity enhancements observed in oscillating direct current plasma" Spectrochimica Acta. Part B: Atomic Spectroscopy, 65, no. 11 (2010):927-934,
https://doi.org/10.1016/j.sab.2010.09.002 .
4
5
6

Geochemistry of the hydrothermal dickite (nowa ruda, lower silesia, poland): chromium

Krstić, N.S.; Pavlović, Mirjana S.; Nikolić, Nebojša D.; Đorđević, Miloš G.; Premović, Pavle I.

(Society of Physical Chemists of Serbia, 2010)

TY  - CONF
AU  - Krstić, N.S.
AU  - Pavlović, Mirjana S.
AU  - Nikolić, Nebojša D.
AU  - Đorđević, Miloš G.
AU  - Premović, Pavle I.
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9346
AB  - Geochemical analyses for trace Cr have been made on a representative sample of a
typical hydrothermal dickite filling vein at Nowa Ruda. The mineralogy of the
sample is comparatively simple, dickite being the principal component (ca. 91% of
total sample). Geochemical fractionation and inductively coupled plasma-optical
emission spectrometry (ICP-OES) indicate that most (>96 % of total metal) of Cr
reside in the dickite. The combination of geochemical and spectroscopic tools
applied on Cr3+ allow one to specify the Eh (>0.4 V, highly oxidizing) and pH
(≤4.0, highly acidic) of the solution during the formation of dickite from the Nowa
Ruda Basin. We suggest that hot hydrothermal waters leached the surrounding
varieties of gabbroids enriched in Cr for the dickite-forming solution.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry
T1  - Geochemistry of the hydrothermal dickite (nowa ruda, lower silesia, poland): chromium
ER  - 
@conference{
author = "Krstić, N.S. and Pavlović, Mirjana S. and Nikolić, Nebojša D. and Đorđević, Miloš G. and Premović, Pavle I.",
year = "2010",
url = "https://vinar.vin.bg.ac.rs/handle/123456789/9346",
abstract = "Geochemical analyses for trace Cr have been made on a representative sample of a
typical hydrothermal dickite filling vein at Nowa Ruda. The mineralogy of the
sample is comparatively simple, dickite being the principal component (ca. 91% of
total sample). Geochemical fractionation and inductively coupled plasma-optical
emission spectrometry (ICP-OES) indicate that most (>96 % of total metal) of Cr
reside in the dickite. The combination of geochemical and spectroscopic tools
applied on Cr3+ allow one to specify the Eh (>0.4 V, highly oxidizing) and pH
(≤4.0, highly acidic) of the solution during the formation of dickite from the Nowa
Ruda Basin. We suggest that hot hydrothermal waters leached the surrounding
varieties of gabbroids enriched in Cr for the dickite-forming solution.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry",
title = "Geochemistry of the hydrothermal dickite (nowa ruda, lower silesia, poland): chromium"
}
Krstić, N.S., Pavlović, M. S., Nikolić, N. D., Đorđević, M. G.,& Premović, P. I. (2010). Geochemistry of the hydrothermal dickite (nowa ruda, lower silesia, poland): chromium.
Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia..
Krstić N, Pavlović MS, Nikolić ND, Đorđević MG, Premović PI. Geochemistry of the hydrothermal dickite (nowa ruda, lower silesia, poland): chromium. Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry. 2010;
Krstić N.S., Pavlović Mirjana S., Nikolić Nebojša D., Đorđević Miloš G., Premović Pavle I., "Geochemistry of the hydrothermal dickite (nowa ruda, lower silesia, poland): chromium" Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry (2010)

Delayed responses of analyte emission in a pulse-modulated direct-current argon arc at atmospheric pressure

Kuzmanović, Miroslav M.; Savović, Jelena; Pavlović, Mirjana S.; Stoiljković, Milovan; Rankovic, D.; Momčilović, Miloš

(2010)

TY  - JOUR
AU  - Kuzmanović, Miroslav M.
AU  - Savović, Jelena
AU  - Pavlović, Mirjana S.
AU  - Stoiljković, Milovan
AU  - Rankovic, D.
AU  - Momčilović, Miloš
PY  - 2010
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4158
AB  - A pulse-modulated direct-current argon arc burning at atmospheric pressure has been investigated by analyzing temporally and spatially resolved analyte emission responses in a millisecond time domain. The arc current was a rectangular pulse modulated between 9 and 3.5A with a modulation period of 250 ms and a low current interval of up to 50 ms. Both positive and negative step modulation in current strongly affected the analyte emission. Delayed responses of representative analytes with ionization energies ranging from 6.5 to 10 eV have been studied. Depending on the analyte ionization energy and the plasma zone observed, a sudden current change was in most cases followed by a line intensity increase. The magnitude of this increase is correlated with changes in the ionization-recombination balance, the extent of demixing and the gas dynamics processes invoked by a current modulation. For analytes with medium and low ionization energies a current drop is accompanied by a large increase in signal-to-background ratio, which opens up the possibility of the use of arc current modulation for sensitivity improvement.
T2  - Plasma Sources Science and Technology
T1  - Delayed responses of analyte emission in a pulse-modulated direct-current argon arc at atmospheric pressure
VL  - 19
IS  - 6
DO  - 10.1088/0963-0252/19/6/065019
ER  - 
@article{
author = "Kuzmanović, Miroslav M. and Savović, Jelena and Pavlović, Mirjana S. and Stoiljković, Milovan and Rankovic, D. and Momčilović, Miloš",
year = "2010",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4158",
abstract = "A pulse-modulated direct-current argon arc burning at atmospheric pressure has been investigated by analyzing temporally and spatially resolved analyte emission responses in a millisecond time domain. The arc current was a rectangular pulse modulated between 9 and 3.5A with a modulation period of 250 ms and a low current interval of up to 50 ms. Both positive and negative step modulation in current strongly affected the analyte emission. Delayed responses of representative analytes with ionization energies ranging from 6.5 to 10 eV have been studied. Depending on the analyte ionization energy and the plasma zone observed, a sudden current change was in most cases followed by a line intensity increase. The magnitude of this increase is correlated with changes in the ionization-recombination balance, the extent of demixing and the gas dynamics processes invoked by a current modulation. For analytes with medium and low ionization energies a current drop is accompanied by a large increase in signal-to-background ratio, which opens up the possibility of the use of arc current modulation for sensitivity improvement.",
journal = "Plasma Sources Science and Technology",
title = "Delayed responses of analyte emission in a pulse-modulated direct-current argon arc at atmospheric pressure",
volume = "19",
number = "6",
doi = "10.1088/0963-0252/19/6/065019"
}
Kuzmanović, M. M., Savović, J., Pavlović, M. S., Stoiljković, M., Rankovic, D.,& Momčilović, M. (2010). Delayed responses of analyte emission in a pulse-modulated direct-current argon arc at atmospheric pressure.
Plasma Sources Science and Technology, 19(6).
https://doi.org/10.1088/0963-0252/19/6/065019
Kuzmanović MM, Savović J, Pavlović MS, Stoiljković M, Rankovic D, Momčilović M. Delayed responses of analyte emission in a pulse-modulated direct-current argon arc at atmospheric pressure. Plasma Sources Science and Technology. 2010;19(6)
Kuzmanović Miroslav M., Savović Jelena, Pavlović Mirjana S., Stoiljković Milovan, Rankovic D., Momčilović Miloš, "Delayed responses of analyte emission in a pulse-modulated direct-current argon arc at atmospheric pressure" Plasma Sources Science and Technology, 19, no. 6 (2010),
https://doi.org/10.1088/0963-0252/19/6/065019 .
1
1
1

The effect of potassium addition on plasma parameters in argon dc plasma arc

Rankovic, D.; Kuzmanović, Miroslav M.; Savović, Jelena; Pavlović, Mirjana S.; Stoiljković, Milovan; Momčilović, Miloš

(2010)

TY  - JOUR
AU  - Rankovic, D.
AU  - Kuzmanović, Miroslav M.
AU  - Savović, Jelena
AU  - Pavlović, Mirjana S.
AU  - Stoiljković, Milovan
AU  - Momčilović, Miloš
PY  - 2010
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3956
AB  - The effect of potassium addition on the radial distribution of temperature and electron number density in a U-shaped direct current (dc) argon plasma operating at different arc currents has been studied by optical emission spectroscopic techniques and the power interruption method. Spatially resolved electron number densities (n(e)) have been determined from measured radial profiles of Balmer-H(beta) spectral line. The obtained electron number densities have been used for thermodynamic temperature (T(LTE)) evaluation with the assumption that the arc plasma is in a state of local thermodynamic equilibrium. The excitation temperatures (T(exc)) have been determined from the absolute integral emissivity of the argon line at 430.01 nm. For heavy particle temperature (T(h)) evaluations we have used a power interruption method. The obtained results have shown that an addition of KCl decreases both electron number density and temperature of the arc column. The magnitude of such an influence on plasma parameters increases with an increase in the KCl concentration and decreases with an increase in the arc current.
T2  - Journal of Physics. D: Applied Physics
T1  - The effect of potassium addition on plasma parameters in argon dc plasma arc
VL  - 43
IS  - 33
DO  - 10.1088/0022-3727/43/33/335202
ER  - 
@article{
author = "Rankovic, D. and Kuzmanović, Miroslav M. and Savović, Jelena and Pavlović, Mirjana S. and Stoiljković, Milovan and Momčilović, Miloš",
year = "2010",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3956",
abstract = "The effect of potassium addition on the radial distribution of temperature and electron number density in a U-shaped direct current (dc) argon plasma operating at different arc currents has been studied by optical emission spectroscopic techniques and the power interruption method. Spatially resolved electron number densities (n(e)) have been determined from measured radial profiles of Balmer-H(beta) spectral line. The obtained electron number densities have been used for thermodynamic temperature (T(LTE)) evaluation with the assumption that the arc plasma is in a state of local thermodynamic equilibrium. The excitation temperatures (T(exc)) have been determined from the absolute integral emissivity of the argon line at 430.01 nm. For heavy particle temperature (T(h)) evaluations we have used a power interruption method. The obtained results have shown that an addition of KCl decreases both electron number density and temperature of the arc column. The magnitude of such an influence on plasma parameters increases with an increase in the KCl concentration and decreases with an increase in the arc current.",
journal = "Journal of Physics. D: Applied Physics",
title = "The effect of potassium addition on plasma parameters in argon dc plasma arc",
volume = "43",
number = "33",
doi = "10.1088/0022-3727/43/33/335202"
}
Rankovic, D., Kuzmanović, M. M., Savović, J., Pavlović, M. S., Stoiljković, M.,& Momčilović, M. (2010). The effect of potassium addition on plasma parameters in argon dc plasma arc.
Journal of Physics. D: Applied Physics, 43(33).
https://doi.org/10.1088/0022-3727/43/33/335202
Rankovic D, Kuzmanović MM, Savović J, Pavlović MS, Stoiljković M, Momčilović M. The effect of potassium addition on plasma parameters in argon dc plasma arc. Journal of Physics. D: Applied Physics. 2010;43(33)
Rankovic D., Kuzmanović Miroslav M., Savović Jelena, Pavlović Mirjana S., Stoiljković Milovan, Momčilović Miloš, "The effect of potassium addition on plasma parameters in argon dc plasma arc" Journal of Physics. D: Applied Physics, 43, no. 33 (2010),
https://doi.org/10.1088/0022-3727/43/33/335202 .
8
9
9

Metal extraction from Cetraria islandica (L.) Ach. lichen using low pH solutions

Cuculovic, Ana A.; Pavlović, Mirjana S.; Veselinović, Dragan S.; Miljanić, Šćepan S.

(2008)

TY  - JOUR
AU  - Cuculovic, Ana A.
AU  - Pavlović, Mirjana S.
AU  - Veselinović, Dragan S.
AU  -  Miljanić, Šćepan S.
PY  - 2008
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3434
AB  - Extraction of metals (K, Al, Ca, Mg, Fe, Cu, Ba, Zn, Mn and Sr) from dry Cetraria islandica (L.) Ach. lichen was performed using solutions similar to acid rain (solution A - H2SO4-HNO3-(NH4)(2)SO4 and solution B - H2SO4-HNO3-(NH4)(2)SO4-NH4NO3). The pH values of these solutions were 2.00, 2.58, 2.87, 3.28, and 3.75. Five consecutive extractions were performed with each solution. In all solutions, the extracted metal content, except Cu and Ca, was the highest in the first extract. The highest percentage of the metals desorbed in the first extraction was obtained using solutions with low pH values, 2.00, 2.58, and 2.87. The iowest percentage in the first extraction was obtained using solutions with pH 3.28 and pH 3.75, indicating influence of the H+ ion on the extraction. According to the results obtained, the investigated metals form two groups. The first group includes K, Al, Ca, Mg, and Fe. They were extracted in each of the five extractions at each of the pH values. The second group includes Ba, Zn, Mn, Cu, and Sr, which were not all extracted at each pH value. The first group yielded three types of extraction curves when the logarithms of extracted metal amounts were plotted as a function of the number of successive extractions. These effects indicate that three different positions (centres) of metal ion accumulation exist in the lichen (due to sorption, complex formation, or other processes present in the tissues).
T2  - Journal of the Serbian Chemical Society
T1  - Metal extraction from Cetraria islandica (L.) Ach. lichen using low pH solutions
VL  - 73
IS  - 4
SP  - 405
EP  - 413
DO  - 10.2298/JSCO804405C
ER  - 
@article{
author = "Cuculovic, Ana A. and Pavlović, Mirjana S. and Veselinović, Dragan S. and  Miljanić, Šćepan S.",
year = "2008",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3434",
abstract = "Extraction of metals (K, Al, Ca, Mg, Fe, Cu, Ba, Zn, Mn and Sr) from dry Cetraria islandica (L.) Ach. lichen was performed using solutions similar to acid rain (solution A - H2SO4-HNO3-(NH4)(2)SO4 and solution B - H2SO4-HNO3-(NH4)(2)SO4-NH4NO3). The pH values of these solutions were 2.00, 2.58, 2.87, 3.28, and 3.75. Five consecutive extractions were performed with each solution. In all solutions, the extracted metal content, except Cu and Ca, was the highest in the first extract. The highest percentage of the metals desorbed in the first extraction was obtained using solutions with low pH values, 2.00, 2.58, and 2.87. The iowest percentage in the first extraction was obtained using solutions with pH 3.28 and pH 3.75, indicating influence of the H+ ion on the extraction. According to the results obtained, the investigated metals form two groups. The first group includes K, Al, Ca, Mg, and Fe. They were extracted in each of the five extractions at each of the pH values. The second group includes Ba, Zn, Mn, Cu, and Sr, which were not all extracted at each pH value. The first group yielded three types of extraction curves when the logarithms of extracted metal amounts were plotted as a function of the number of successive extractions. These effects indicate that three different positions (centres) of metal ion accumulation exist in the lichen (due to sorption, complex formation, or other processes present in the tissues).",
journal = "Journal of the Serbian Chemical Society",
title = "Metal extraction from Cetraria islandica (L.) Ach. lichen using low pH solutions",
volume = "73",
number = "4",
pages = "405-413",
doi = "10.2298/JSCO804405C"
}
Cuculovic, A. A., Pavlović, M. S., Veselinović, D. S.,&  Miljanić, Š. S. (2008). Metal extraction from Cetraria islandica (L.) Ach. lichen using low pH solutions.
Journal of the Serbian Chemical Society, 73(4), 405-413.
https://doi.org/10.2298/JSCO804405C
Cuculovic AA, Pavlović MS, Veselinović DS,  Miljanić ŠS. Metal extraction from Cetraria islandica (L.) Ach. lichen using low pH solutions. Journal of the Serbian Chemical Society. 2008;73(4):405-413
Cuculovic Ana A., Pavlović Mirjana S., Veselinović Dragan S.,  Miljanić Šćepan S., "Metal extraction from Cetraria islandica (L.) Ach. lichen using low pH solutions" Journal of the Serbian Chemical Society, 73, no. 4 (2008):405-413,
https://doi.org/10.2298/JSCO804405C .
8

Study of the spatial redistribution of the analyte spectral emission in dc arc plasma induced by external oscillating magnetic field

Stoiljković, Milovan; Pavlović, Mirjana S.; Momčilović, M.; Savović, Jelena

(Society of Physical Chemists of Serbia, 2008)

TY  - CONF
AU  - Stoiljković, Milovan
AU  - Pavlović, Mirjana S.
AU  - Momčilović, M.
AU  - Savović, Jelena
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9357
AB  - Monochromatic digital imaging technique was developed for studying the spatial emission intensity distribution of atmospheric pressure dc arc plasma with aerosol supply. Arc plasma was imposed to external oscillating magnetic fields of strengths up to 12 mT and frequency of 50 Hz. This plasma was studied in a laterally resolved manner and at selected observation heights. The intensity enhancement and spatial redistribution of the analyte emission was evaluated and compared to the steady state plasma. The intensity enhancements were correlated with the attained speeds of plasma core movement. Spatial regions in the arc plasma with maximal emission enhancement are identified and clarified. The effect of the electrode polarity was also investigated.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry
T1  - Study of the spatial redistribution of the analyte spectral emission in dc arc plasma induced by external oscillating magnetic field
VL  - 1
SP  - 94
EP  - 96
ER  - 
@conference{
author = "Stoiljković, Milovan and Pavlović, Mirjana S. and Momčilović, M. and Savović, Jelena",
year = "2008",
url = "https://vinar.vin.bg.ac.rs/handle/123456789/9357",
abstract = "Monochromatic digital imaging technique was developed for studying the spatial emission intensity distribution of atmospheric pressure dc arc plasma with aerosol supply. Arc plasma was imposed to external oscillating magnetic fields of strengths up to 12 mT and frequency of 50 Hz. This plasma was studied in a laterally resolved manner and at selected observation heights. The intensity enhancement and spatial redistribution of the analyte emission was evaluated and compared to the steady state plasma. The intensity enhancements were correlated with the attained speeds of plasma core movement. Spatial regions in the arc plasma with maximal emission enhancement are identified and clarified. The effect of the electrode polarity was also investigated.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry",
title = "Study of the spatial redistribution of the analyte spectral emission in dc arc plasma induced by external oscillating magnetic field",
volume = "1",
pages = "94-96"
}
Stoiljković, M., Pavlović, M. S., Momčilović, M.,& Savović, J. (2008). Study of the spatial redistribution of the analyte spectral emission in dc arc plasma induced by external oscillating magnetic field.
Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia., 1, 94-96.
Stoiljković M, Pavlović MS, Momčilović M, Savović J. Study of the spatial redistribution of the analyte spectral emission in dc arc plasma induced by external oscillating magnetic field. Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry. 2008;1:94-96
Stoiljković Milovan, Pavlović Mirjana S., Momčilović M., Savović Jelena, "Study of the spatial redistribution of the analyte spectral emission in dc arc plasma induced by external oscillating magnetic field" Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry, 1 (2008):94-96

Cretaceous-paleogene boundary fish clay at hojerup (Stevns Klint, Denmark): Zn, Pb and PEE in kerogen

Premović, Pavle I.; Stankovic, Maja N.; Pavlović, Mirjana S.; Đorđević, Miloš G.

(2008)

TY  - JOUR
AU  - Premović, Pavle I.
AU  - Stankovic, Maja N.
AU  - Pavlović, Mirjana S.
AU  - Đorđević, Miloš G.
PY  - 2008
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3435
AB  - Geochemical analyses of Zn, Pb and rare earth elements (La, Ce, Nd, Sm, Eu, Tb, Yb and Lu) in the kerogen of the black marl at the Cretaceous - Paleogene boundary Fish Clay at Hojerup were performed. Substantial proportions of the Zn, Pb and rare earths were probably contained in terrestrial humic substances (the kerogen precursor) arriving at the marine sedimentary site. This is in accord with a previous hypothesis that kerogen is mainly derived from humic acids of an oxic soil in of the adjacent coastal areas of eastern Denmark. It is also suggested that humics enriched in Zn, Pb and rare earth elements were transported mainly through fluvial transport into the deposition site of the Fish Clay. Local weathering/leaching of the impact-eject fallout on the land surface and local terrestrial rocks by impact-induced? acid surface waters perhaps played an important role in providing Zn, Ph and rare earths to these humic substances. Apparently, chondritic and non-chondritic Zn originated from the impact fallout; Pb and rare earth elements were most likely sourced by exposed rocks in the coastal areas of eastern Denmark.
T2  - Journal of the Serbian Chemical Society
T1  - Cretaceous-paleogene boundary fish clay at hojerup (Stevns Klint, Denmark): Zn, Pb and PEE in kerogen
VL  - 73
IS  - 4
SP  - 453
EP  - 461
DO  - 10.2298/JSC0804453P
ER  - 
@article{
author = "Premović, Pavle I. and Stankovic, Maja N. and Pavlović, Mirjana S. and Đorđević, Miloš G.",
year = "2008",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3435",
abstract = "Geochemical analyses of Zn, Pb and rare earth elements (La, Ce, Nd, Sm, Eu, Tb, Yb and Lu) in the kerogen of the black marl at the Cretaceous - Paleogene boundary Fish Clay at Hojerup were performed. Substantial proportions of the Zn, Pb and rare earths were probably contained in terrestrial humic substances (the kerogen precursor) arriving at the marine sedimentary site. This is in accord with a previous hypothesis that kerogen is mainly derived from humic acids of an oxic soil in of the adjacent coastal areas of eastern Denmark. It is also suggested that humics enriched in Zn, Pb and rare earth elements were transported mainly through fluvial transport into the deposition site of the Fish Clay. Local weathering/leaching of the impact-eject fallout on the land surface and local terrestrial rocks by impact-induced? acid surface waters perhaps played an important role in providing Zn, Ph and rare earths to these humic substances. Apparently, chondritic and non-chondritic Zn originated from the impact fallout; Pb and rare earth elements were most likely sourced by exposed rocks in the coastal areas of eastern Denmark.",
journal = "Journal of the Serbian Chemical Society",
title = "Cretaceous-paleogene boundary fish clay at hojerup (Stevns Klint, Denmark): Zn, Pb and PEE in kerogen",
volume = "73",
number = "4",
pages = "453-461",
doi = "10.2298/JSC0804453P"
}
Premović, P. I., Stankovic, M. N., Pavlović, M. S.,& Đorđević, M. G. (2008). Cretaceous-paleogene boundary fish clay at hojerup (Stevns Klint, Denmark): Zn, Pb and PEE in kerogen.
Journal of the Serbian Chemical Society, 73(4), 453-461.
https://doi.org/10.2298/JSC0804453P
Premović PI, Stankovic MN, Pavlović MS, Đorđević MG. Cretaceous-paleogene boundary fish clay at hojerup (Stevns Klint, Denmark): Zn, Pb and PEE in kerogen. Journal of the Serbian Chemical Society. 2008;73(4):453-461
Premović Pavle I., Stankovic Maja N., Pavlović Mirjana S., Đorđević Miloš G., "Cretaceous-paleogene boundary fish clay at hojerup (Stevns Klint, Denmark): Zn, Pb and PEE in kerogen" Journal of the Serbian Chemical Society, 73, no. 4 (2008):453-461,
https://doi.org/10.2298/JSC0804453P .
1
1

A spectroscopic investigation of stabilized dc argon arc at atmospheric pressure by power modulation technique

Savović, Jelena; Kuzmanović, Miroslav M.; Pavlović, Mirjana S.; Stoiljković, Milovan; Momčilović, Miloš

(2008)

TY  - JOUR
AU  - Savović, Jelena
AU  - Kuzmanović, Miroslav M.
AU  - Pavlović, Mirjana S.
AU  - Stoiljković, Milovan
AU  - Momčilović, Miloš
PY  - 2008
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3616
AB  - Spatial distribution of delayed responses of argon and hydrogen spectral line and continuum intensity to square power modulation was investigated in order to get better insight into the processes occurring in argon dc arc plasma. The power was abruptly changed between stationary values, 9 and 3.5 A. For these currents steady state radial distributions of electron number density, temperature and emission intensity were measured. On part of the discharge radial profiles the power drop and the power jump are both accompanied by intensity peaks which may be explained by displacement of the arc core axis and change in the arc core diameter during the power modulation.
T2  - European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics
T1  - A spectroscopic investigation of stabilized dc argon arc at atmospheric pressure by power modulation technique
VL  - 50
IS  - 3
SP  - 289
EP  - 296
DO  - 10.1140/epjd/e2008-00225-9
ER  - 
@article{
author = "Savović, Jelena and Kuzmanović, Miroslav M. and Pavlović, Mirjana S. and Stoiljković, Milovan and Momčilović, Miloš",
year = "2008",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3616",
abstract = "Spatial distribution of delayed responses of argon and hydrogen spectral line and continuum intensity to square power modulation was investigated in order to get better insight into the processes occurring in argon dc arc plasma. The power was abruptly changed between stationary values, 9 and 3.5 A. For these currents steady state radial distributions of electron number density, temperature and emission intensity were measured. On part of the discharge radial profiles the power drop and the power jump are both accompanied by intensity peaks which may be explained by displacement of the arc core axis and change in the arc core diameter during the power modulation.",
journal = "European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics",
title = "A spectroscopic investigation of stabilized dc argon arc at atmospheric pressure by power modulation technique",
volume = "50",
number = "3",
pages = "289-296",
doi = "10.1140/epjd/e2008-00225-9"
}
Savović, J., Kuzmanović, M. M., Pavlović, M. S., Stoiljković, M.,& Momčilović, M. (2008). A spectroscopic investigation of stabilized dc argon arc at atmospheric pressure by power modulation technique.
European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics, 50(3), 289-296.
https://doi.org/10.1140/epjd/e2008-00225-9
Savović J, Kuzmanović MM, Pavlović MS, Stoiljković M, Momčilović M. A spectroscopic investigation of stabilized dc argon arc at atmospheric pressure by power modulation technique. European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics. 2008;50(3):289-296
Savović Jelena, Kuzmanović Miroslav M., Pavlović Mirjana S., Stoiljković Milovan, Momčilović Miloš, "A spectroscopic investigation of stabilized dc argon arc at atmospheric pressure by power modulation technique" European Physical Journal D. Atoms, Molecules, Clusters and Optical Physics, 50, no. 3 (2008):289-296,
https://doi.org/10.1140/epjd/e2008-00225-9 .
4
2
2

A spectroscopic investigation of spatial symmetry of radiation in the U-shaped DC argon plasma with aerosol supply

Savović, Jelena; Kuzmanović, Miroslav M.; Pavlović, Mirjana S.; Stoiljković, Milovan; Rankovic, D. P.; Marinković, Miloš

(2008)

TY  - JOUR
AU  - Savović, Jelena
AU  - Kuzmanović, Miroslav M.
AU  - Pavlović, Mirjana S.
AU  - Stoiljković, Milovan
AU  - Rankovic, D. P.
AU  - Marinković, Miloš
PY  - 2008
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3471
AB  - Radial distributions of plasma parameters, temperature, and electron number density, together with radial distribution of analyte absorption and emission, were investigated in order to obtain insight into the radial symmetry of low-current ( LT = 10A), atmospheric pressure, argon stabilized arc with tangential introduction of the aerosol. For plasma diagnostics, several methods were used: measurements of H line profile, absolute intensity measurements of the argon 430.01-nm line, and of the spectrally adjacent continuum and power interruption technique. It was found that the inevitable asymmetry in aerosol introduction has negligible influence on basic plasma parameters but influences considerably the spatial distribution of the analyte particle spectral absorption and emission.
T2  - Spectroscopy Letters
T1  - A spectroscopic investigation of spatial symmetry of radiation in the U-shaped DC argon plasma with aerosol supply
VL  - 41
IS  - 4
SP  - 166
EP  - 173
DO  - 10.1080/00387010802132326
ER  - 
@article{
author = "Savović, Jelena and Kuzmanović, Miroslav M. and Pavlović, Mirjana S. and Stoiljković, Milovan and Rankovic, D. P. and Marinković, Miloš",
year = "2008",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3471",
abstract = "Radial distributions of plasma parameters, temperature, and electron number density, together with radial distribution of analyte absorption and emission, were investigated in order to obtain insight into the radial symmetry of low-current ( LT = 10A), atmospheric pressure, argon stabilized arc with tangential introduction of the aerosol. For plasma diagnostics, several methods were used: measurements of H line profile, absolute intensity measurements of the argon 430.01-nm line, and of the spectrally adjacent continuum and power interruption technique. It was found that the inevitable asymmetry in aerosol introduction has negligible influence on basic plasma parameters but influences considerably the spatial distribution of the analyte particle spectral absorption and emission.",
journal = "Spectroscopy Letters",
title = "A spectroscopic investigation of spatial symmetry of radiation in the U-shaped DC argon plasma with aerosol supply",
volume = "41",
number = "4",
pages = "166-173",
doi = "10.1080/00387010802132326"
}
Savović, J., Kuzmanović, M. M., Pavlović, M. S., Stoiljković, M., Rankovic, D. P.,& Marinković, M. (2008). A spectroscopic investigation of spatial symmetry of radiation in the U-shaped DC argon plasma with aerosol supply.
Spectroscopy Letters, 41(4), 166-173.
https://doi.org/10.1080/00387010802132326
Savović J, Kuzmanović MM, Pavlović MS, Stoiljković M, Rankovic DP, Marinković M. A spectroscopic investigation of spatial symmetry of radiation in the U-shaped DC argon plasma with aerosol supply. Spectroscopy Letters. 2008;41(4):166-173
Savović Jelena, Kuzmanović Miroslav M., Pavlović Mirjana S., Stoiljković Milovan, Rankovic D. P., Marinković Miloš, "A spectroscopic investigation of spatial symmetry of radiation in the U-shaped DC argon plasma with aerosol supply" Spectroscopy Letters, 41, no. 4 (2008):166-173,
https://doi.org/10.1080/00387010802132326 .
2
2
2

A power interruption technique for investigation of temperature difference in stabilized low direct-current arc burning in pure argon on atmospheric pressure

Kuzmanović, Miroslav M.; Savović, Jelena; Rankovic, D. P.; Stoiljković, Milovan; Antić-Jovanović, Ankica; Pavlović, Mirjana S.; Marinković, Miloš

(2008)

TY  - JOUR
AU  - Kuzmanović, Miroslav M.
AU  - Savović, Jelena
AU  - Rankovic, D. P.
AU  - Stoiljković, Milovan
AU  - Antić-Jovanović, Ankica
AU  - Pavlović, Mirjana S.
AU  - Marinković, Miloš
PY  - 2008
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3426
AB  - Plasma of argon stabilized arc column, in a current range 3-11 A, is investigated using emission spectrometric diagnostic techniques. Temperatures are evaluated using several methods: argon line to adjacent recombinational continuum intensity ratio, absolute emissivity of argon line, measurement of electron number density, and power interruption. Electron number density is evaluated from absolute emissivity of recombinational continuum. The difference between electron T-e and heavy particle T-h temperature ranged from 4500K for 3 A to 2300K for 11 A arc current. By comparing the present with the previously obtained results, using the same arc device but with the introduction of water aerosol, it is concluded that water aerosol reduces the clifference T-e - T-h and brings plasma closer to the partial thermodynamic equilibrium state.
T2  - Chinese Physics Letters
T1  - A power interruption technique for investigation of temperature difference in stabilized low direct-current arc burning in pure argon on atmospheric pressure
VL  - 25
IS  - 4
SP  - 1376
EP  - 1379
DO  - 10.1088/0256-307X/25/4/058
ER  - 
@article{
author = "Kuzmanović, Miroslav M. and Savović, Jelena and Rankovic, D. P. and Stoiljković, Milovan and Antić-Jovanović, Ankica and Pavlović, Mirjana S. and Marinković, Miloš",
year = "2008",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3426",
abstract = "Plasma of argon stabilized arc column, in a current range 3-11 A, is investigated using emission spectrometric diagnostic techniques. Temperatures are evaluated using several methods: argon line to adjacent recombinational continuum intensity ratio, absolute emissivity of argon line, measurement of electron number density, and power interruption. Electron number density is evaluated from absolute emissivity of recombinational continuum. The difference between electron T-e and heavy particle T-h temperature ranged from 4500K for 3 A to 2300K for 11 A arc current. By comparing the present with the previously obtained results, using the same arc device but with the introduction of water aerosol, it is concluded that water aerosol reduces the clifference T-e - T-h and brings plasma closer to the partial thermodynamic equilibrium state.",
journal = "Chinese Physics Letters",
title = "A power interruption technique for investigation of temperature difference in stabilized low direct-current arc burning in pure argon on atmospheric pressure",
volume = "25",
number = "4",
pages = "1376-1379",
doi = "10.1088/0256-307X/25/4/058"
}
Kuzmanović, M. M., Savović, J., Rankovic, D. P., Stoiljković, M., Antić-Jovanović, A., Pavlović, M. S.,& Marinković, M. (2008). A power interruption technique for investigation of temperature difference in stabilized low direct-current arc burning in pure argon on atmospheric pressure.
Chinese Physics Letters, 25(4), 1376-1379.
https://doi.org/10.1088/0256-307X/25/4/058
Kuzmanović MM, Savović J, Rankovic DP, Stoiljković M, Antić-Jovanović A, Pavlović MS, Marinković M. A power interruption technique for investigation of temperature difference in stabilized low direct-current arc burning in pure argon on atmospheric pressure. Chinese Physics Letters. 2008;25(4):1376-1379
Kuzmanović Miroslav M., Savović Jelena, Rankovic D. P., Stoiljković Milovan, Antić-Jovanović Ankica, Pavlović Mirjana S., Marinković Miloš, "A power interruption technique for investigation of temperature difference in stabilized low direct-current arc burning in pure argon on atmospheric pressure" Chinese Physics Letters, 25, no. 4 (2008):1376-1379,
https://doi.org/10.1088/0256-307X/25/4/058 .
2
2
2

Cretaceous-Paleogene boundary Fish Clay at Hojerup (Stevns Klint, Denmark): trace metals in kerogen

Premović, Pavle I.; Todorović, Bratislav Ž.; Pavlović, Mirjana S.

(2007)

TY  - JOUR
AU  - Premović, Pavle I.
AU  - Todorović, Bratislav Ž.
AU  - Pavlović, Mirjana S.
PY  - 2007
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3232
AB  - Geochemical analyses of trace metals (Ir, Ni, Co, Cr, Zn, Au and Pb) and rare earth elements (La, Ce, Nd, Sm, Eu, Tb, Yb and Lu) in kerogen of the black marl at the Cretaceous-Paleogene boundary Fish Clay at Hojerup have been undertaken. Substantial proportions of the trace metals and rare earths were probably contained in terrestrial humic substances (the kerogen precursor) arriving at the marine sedimentary site. This is in accord with a previous hypothesis that kerogen is mainly derived from humic acids of an oxic soil in of the adjacent coastal areas of eastern Denmark. It is also suggested that humics were transported mainly through fluvial transport into the site of the deposition of the Fish Clay. The local weathering/leaching of the impact-ejecta fallout on the land surface or local terrestrial rocks by impact-induced? acid surface waters perhaps played an important role in providing trace metals and rare earths for these humic substances. Apparently, chondritic Ir, An, Ni, Co, Cr and chondritic and non-chondritic Zn originated from the impact fallout; Pb and rare earth elements were most likely sourced by the rocks exposed in the coastal areas of eastern Denmark.
T2  - Bulletin de La Societe Geologique de France
T1  - Cretaceous-Paleogene boundary Fish Clay at Hojerup (Stevns Klint, Denmark): trace metals in kerogen
VL  - 178
IS  - 5
SP  - 411
EP  - 421
DO  - 10.2113/gssgfbull.178.5.411
ER  - 
@article{
author = "Premović, Pavle I. and Todorović, Bratislav Ž. and Pavlović, Mirjana S.",
year = "2007",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3232",
abstract = "Geochemical analyses of trace metals (Ir, Ni, Co, Cr, Zn, Au and Pb) and rare earth elements (La, Ce, Nd, Sm, Eu, Tb, Yb and Lu) in kerogen of the black marl at the Cretaceous-Paleogene boundary Fish Clay at Hojerup have been undertaken. Substantial proportions of the trace metals and rare earths were probably contained in terrestrial humic substances (the kerogen precursor) arriving at the marine sedimentary site. This is in accord with a previous hypothesis that kerogen is mainly derived from humic acids of an oxic soil in of the adjacent coastal areas of eastern Denmark. It is also suggested that humics were transported mainly through fluvial transport into the site of the deposition of the Fish Clay. The local weathering/leaching of the impact-ejecta fallout on the land surface or local terrestrial rocks by impact-induced? acid surface waters perhaps played an important role in providing trace metals and rare earths for these humic substances. Apparently, chondritic Ir, An, Ni, Co, Cr and chondritic and non-chondritic Zn originated from the impact fallout; Pb and rare earth elements were most likely sourced by the rocks exposed in the coastal areas of eastern Denmark.",
journal = "Bulletin de La Societe Geologique de France",
title = "Cretaceous-Paleogene boundary Fish Clay at Hojerup (Stevns Klint, Denmark): trace metals in kerogen",
volume = "178",
number = "5",
pages = "411-421",
doi = "10.2113/gssgfbull.178.5.411"
}
Premović, P. I., Todorović, B. Ž.,& Pavlović, M. S. (2007). Cretaceous-Paleogene boundary Fish Clay at Hojerup (Stevns Klint, Denmark): trace metals in kerogen.
Bulletin de La Societe Geologique de France, 178(5), 411-421.
https://doi.org/10.2113/gssgfbull.178.5.411
Premović PI, Todorović BŽ, Pavlović MS. Cretaceous-Paleogene boundary Fish Clay at Hojerup (Stevns Klint, Denmark): trace metals in kerogen. Bulletin de La Societe Geologique de France. 2007;178(5):411-421
Premović Pavle I., Todorović Bratislav Ž., Pavlović Mirjana S., "Cretaceous-Paleogene boundary Fish Clay at Hojerup (Stevns Klint, Denmark): trace metals in kerogen" Bulletin de La Societe Geologique de France, 178, no. 5 (2007):411-421,
https://doi.org/10.2113/gssgfbull.178.5.411 .
2
3
3

Geochemistry of the cretaceous-tertiary boundary (Fish clay) at Stevns Klint (Denmark): Ir, Ni and Zn in kerogen

Premović, Pavle I.; Krsmanovic, Milena M.; Todorović, Bratislav Ž.; Pavlović, Mirjana S.; Nikolic, Nikola D.; Djordjevic, Dragan M.

(2006)

TY  - JOUR
AU  - Premović, Pavle I.
AU  - Krsmanovic, Milena M.
AU  - Todorović, Bratislav Ž.
AU  - Pavlović, Mirjana S.
AU  - Nikolic, Nikola D.
AU  - Djordjevic, Dragan M.
PY  - 2006
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3126
AB  - Geochemical analyses of trace metals (Ir, Ni and Zn) in the kerogen of the black marl of the Cretaceous-Tertiary boundary succession (Fish Clay) at Stevns Klint (Hojerup Church) were undertaken. The data for this kerogen were in accordance with a previous hypothesis(1) that this (insoluble) geoorganic polymer was derived from humic substances (mainly humic acids) of a nearshore soil. Substantial proportions of Ir, Ni and Zn within the kerogen structure were probably contained in these substances arriving at the sedimentary site. It is proposed that these humics were probably transported by acid surface waters (induced by the KT asteroid impact) into the shallow marine basin of Stevns Klint. It is also suggested that local leaching/weathering of the asteroidal impact fallout oil the land near these waters played an important role in providing Ir, Ni and Zn for these substances. Apparently, Ir, Ni and Zn of the kerogen were created by the chondritic component of the impact ejecta fallout.
T2  - Journal of the Serbian Chemical Society
T1  - Geochemistry of the cretaceous-tertiary boundary (Fish clay) at Stevns Klint (Denmark): Ir, Ni and Zn in kerogen
VL  - 71
IS  - 7
SP  - 793
EP  - 806
DO  - 10.2298/JSC0607793P
ER  - 
@article{
author = "Premović, Pavle I. and Krsmanovic, Milena M. and Todorović, Bratislav Ž. and Pavlović, Mirjana S. and Nikolic, Nikola D. and Djordjevic, Dragan M.",
year = "2006",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3126",
abstract = "Geochemical analyses of trace metals (Ir, Ni and Zn) in the kerogen of the black marl of the Cretaceous-Tertiary boundary succession (Fish Clay) at Stevns Klint (Hojerup Church) were undertaken. The data for this kerogen were in accordance with a previous hypothesis(1) that this (insoluble) geoorganic polymer was derived from humic substances (mainly humic acids) of a nearshore soil. Substantial proportions of Ir, Ni and Zn within the kerogen structure were probably contained in these substances arriving at the sedimentary site. It is proposed that these humics were probably transported by acid surface waters (induced by the KT asteroid impact) into the shallow marine basin of Stevns Klint. It is also suggested that local leaching/weathering of the asteroidal impact fallout oil the land near these waters played an important role in providing Ir, Ni and Zn for these substances. Apparently, Ir, Ni and Zn of the kerogen were created by the chondritic component of the impact ejecta fallout.",
journal = "Journal of the Serbian Chemical Society",
title = "Geochemistry of the cretaceous-tertiary boundary (Fish clay) at Stevns Klint (Denmark): Ir, Ni and Zn in kerogen",
volume = "71",
number = "7",
pages = "793-806",
doi = "10.2298/JSC0607793P"
}
Premović, P. I., Krsmanovic, M. M., Todorović, B. Ž., Pavlović, M. S., Nikolic, N. D.,& Djordjevic, D. M. (2006). Geochemistry of the cretaceous-tertiary boundary (Fish clay) at Stevns Klint (Denmark): Ir, Ni and Zn in kerogen.
Journal of the Serbian Chemical Society, 71(7), 793-806.
https://doi.org/10.2298/JSC0607793P
Premović PI, Krsmanovic MM, Todorović BŽ, Pavlović MS, Nikolic ND, Djordjevic DM. Geochemistry of the cretaceous-tertiary boundary (Fish clay) at Stevns Klint (Denmark): Ir, Ni and Zn in kerogen. Journal of the Serbian Chemical Society. 2006;71(7):793-806
Premović Pavle I., Krsmanovic Milena M., Todorović Bratislav Ž., Pavlović Mirjana S., Nikolic Nikola D., Djordjevic Dragan M., "Geochemistry of the cretaceous-tertiary boundary (Fish clay) at Stevns Klint (Denmark): Ir, Ni and Zn in kerogen" Journal of the Serbian Chemical Society, 71, no. 7 (2006):793-806,
https://doi.org/10.2298/JSC0607793P .
5
7
6

Geochemistry of Ni in the Cretaceous-Tertiary succession Fiskeler (Fish Clay) at Stevns Klint (Denmark): cheto-smectite of the black marl

Premović, Pavle I.; Todorović, Bratislav Ž.; Nikolic, Nikola D.; Pavlović, Mirjana S.; Dordevic, Dragan M.; Dulanovic, Dejan T.

(2006)

TY  - JOUR
AU  - Premović, Pavle I.
AU  - Todorović, Bratislav Ž.
AU  - Nikolic, Nikola D.
AU  - Pavlović, Mirjana S.
AU  - Dordevic, Dragan M.
AU  - Dulanovic, Dejan T.
PY  - 2006
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/3087
AB  - The Cretaceus-Tertiary (KT) boundary at Stevns Klint (the Hojerup succession), Fiskeler, consists of a thin red clay layer overlain by a thick one of black marl. These two layers are made up mainly from cheto-smectite and biogenic calcite. The black marl shows an enhanced concentration of Ni (655 ppm) within its smectite fraction. Additionally, its carbonate fraction also shows an enhanced concentration of Ni (245 ppm). It is reasoned that these enrichments represent a sudden and rapid input of high amounts of Ni into the late Cretaccus seawater at Stevns Klint. The ultimate source of Ni in both the carbonate and smectite fractions of the black marl was probably impact fallout, produced by the KT asteroidal impact, deposited on the nearby soil and 1 ached by the (acid) surface waters. The geochemistry of the Ni supports the hypothesis that the smectite of this marl most likely has a local (marine or terrestrial) provenance and was probably redeposited, after its formation, from the original site to its present location at the KT boundary.
T2  - Journal of the Serbian Chemical Society
T1  - Geochemistry of Ni in the Cretaceous-Tertiary succession Fiskeler (Fish Clay) at Stevns Klint (Denmark): cheto-smectite of the black marl
VL  - 71
IS  - 6
SP  - 639
EP  - 659
DO  - 10.2298/JSC0606639P
ER  - 
@article{
author = "Premović, Pavle I. and Todorović, Bratislav Ž. and Nikolic, Nikola D. and Pavlović, Mirjana S. and Dordevic, Dragan M. and Dulanovic, Dejan T.",
year = "2006",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/3087",
abstract = "The Cretaceus-Tertiary (KT) boundary at Stevns Klint (the Hojerup succession), Fiskeler, consists of a thin red clay layer overlain by a thick one of black marl. These two layers are made up mainly from cheto-smectite and biogenic calcite. The black marl shows an enhanced concentration of Ni (655 ppm) within its smectite fraction. Additionally, its carbonate fraction also shows an enhanced concentration of Ni (245 ppm). It is reasoned that these enrichments represent a sudden and rapid input of high amounts of Ni into the late Cretaccus seawater at Stevns Klint. The ultimate source of Ni in both the carbonate and smectite fractions of the black marl was probably impact fallout, produced by the KT asteroidal impact, deposited on the nearby soil and 1 ached by the (acid) surface waters. The geochemistry of the Ni supports the hypothesis that the smectite of this marl most likely has a local (marine or terrestrial) provenance and was probably redeposited, after its formation, from the original site to its present location at the KT boundary.",
journal = "Journal of the Serbian Chemical Society",
title = "Geochemistry of Ni in the Cretaceous-Tertiary succession Fiskeler (Fish Clay) at Stevns Klint (Denmark): cheto-smectite of the black marl",
volume = "71",
number = "6",
pages = "639-659",
doi = "10.2298/JSC0606639P"
}
Premović, P. I., Todorović, B. Ž., Nikolic, N. D., Pavlović, M. S., Dordevic, D. M.,& Dulanovic, D. T. (2006). Geochemistry of Ni in the Cretaceous-Tertiary succession Fiskeler (Fish Clay) at Stevns Klint (Denmark): cheto-smectite of the black marl.
Journal of the Serbian Chemical Society, 71(6), 639-659.
https://doi.org/10.2298/JSC0606639P
Premović PI, Todorović BŽ, Nikolic ND, Pavlović MS, Dordevic DM, Dulanovic DT. Geochemistry of Ni in the Cretaceous-Tertiary succession Fiskeler (Fish Clay) at Stevns Klint (Denmark): cheto-smectite of the black marl. Journal of the Serbian Chemical Society. 2006;71(6):639-659
Premović Pavle I., Todorović Bratislav Ž., Nikolic Nikola D., Pavlović Mirjana S., Dordevic Dragan M., Dulanovic Dejan T., "Geochemistry of Ni in the Cretaceous-Tertiary succession Fiskeler (Fish Clay) at Stevns Klint (Denmark): cheto-smectite of the black marl" Journal of the Serbian Chemical Society, 71, no. 6 (2006):639-659,
https://doi.org/10.2298/JSC0606639P .
1
3
2

Influence of easily ionised elements on the delayed responses of the emission intensities of an analyte in a power modulated U-shaped argon stabilised DC arc plasma with an aerosol supply

Kuzmanović, Miroslav M.; Savović, Jelena; Pavlović, Mirjana S.; Stoiljković, Milovan; Antić-Jovanović, Ankica; Marinković, Miloš

(2005)

TY  - JOUR
AU  - Kuzmanović, Miroslav M.
AU  - Savović, Jelena
AU  - Pavlović, Mirjana S.
AU  - Stoiljković, Milovan
AU  - Antić-Jovanović, Ankica
AU  - Marinković, Miloš
PY  - 2005
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/2937
AB  - The current of a U-shaped argon stabilised DC arc was square modulated with a 40 Hz repetition frequency between 6 and 3 A. The delayed line intensity responses to the modulation of the arc current were investigated using calcium as a representative analyte. The intensities of both the atomic and ionic lines were monitored at different distances from the are axis in the presence of various concentrations of the easily ionised element. Temporal evolutions were monitored on a millisecond time scale. It was found that the responses of the line intesity to the arc current change strongly depended on the observed radial position, especially in the vicinity of the arc axis. The obtained results showed a significant influence of even small amounts of the easily ionised element oil the excitation and transport of the analyte and indicated a way of possibly improving the analytical capabilities of the excitation source.
T2  - Journal of the Serbian Chemical Society
T1  - Influence of easily ionised elements on the delayed responses of the emission intensities of an analyte in a power modulated U-shaped argon stabilised DC arc plasma with an aerosol supply
VL  - 70
IS  - 8-9
SP  - 1033
EP  - 1040
DO  - 10.2298/JSC0509033K
ER  - 
@article{
author = "Kuzmanović, Miroslav M. and Savović, Jelena and Pavlović, Mirjana S. and Stoiljković, Milovan and Antić-Jovanović, Ankica and Marinković, Miloš",
year = "2005",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/2937",
abstract = "The current of a U-shaped argon stabilised DC arc was square modulated with a 40 Hz repetition frequency between 6 and 3 A. The delayed line intensity responses to the modulation of the arc current were investigated using calcium as a representative analyte. The intensities of both the atomic and ionic lines were monitored at different distances from the are axis in the presence of various concentrations of the easily ionised element. Temporal evolutions were monitored on a millisecond time scale. It was found that the responses of the line intesity to the arc current change strongly depended on the observed radial position, especially in the vicinity of the arc axis. The obtained results showed a significant influence of even small amounts of the easily ionised element oil the excitation and transport of the analyte and indicated a way of possibly improving the analytical capabilities of the excitation source.",
journal = "Journal of the Serbian Chemical Society",
title = "Influence of easily ionised elements on the delayed responses of the emission intensities of an analyte in a power modulated U-shaped argon stabilised DC arc plasma with an aerosol supply",
volume = "70",
number = "8-9",
pages = "1033-1040",
doi = "10.2298/JSC0509033K"
}
Kuzmanović, M. M., Savović, J., Pavlović, M. S., Stoiljković, M., Antić-Jovanović, A.,& Marinković, M. (2005). Influence of easily ionised elements on the delayed responses of the emission intensities of an analyte in a power modulated U-shaped argon stabilised DC arc plasma with an aerosol supply.
Journal of the Serbian Chemical Society, 70(8-9), 1033-1040.
https://doi.org/10.2298/JSC0509033K
Kuzmanović MM, Savović J, Pavlović MS, Stoiljković M, Antić-Jovanović A, Marinković M. Influence of easily ionised elements on the delayed responses of the emission intensities of an analyte in a power modulated U-shaped argon stabilised DC arc plasma with an aerosol supply. Journal of the Serbian Chemical Society. 2005;70(8-9):1033-1040
Kuzmanović Miroslav M., Savović Jelena, Pavlović Mirjana S., Stoiljković Milovan, Antić-Jovanović Ankica, Marinković Miloš, "Influence of easily ionised elements on the delayed responses of the emission intensities of an analyte in a power modulated U-shaped argon stabilised DC arc plasma with an aerosol supply" Journal of the Serbian Chemical Society, 70, no. 8-9 (2005):1033-1040,
https://doi.org/10.2298/JSC0509033K .
3
3
3

Study of aerosol sample interaction with dc plasma in the presence of oscillating magnetic field

Stoiljković, Milovan; Pavlović, Mirjana S.; Savović, Jelena; Kumanovic, M; Maninkovic, M

(2005)

TY  - JOUR
AU  - Stoiljković, Milovan
AU  - Pavlović, Mirjana S.
AU  - Savović, Jelena
AU  - Kumanovic, M
AU  - Maninkovic, M
PY  - 2005
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/2956
AB  - Oscillating magnetic field was used to Study the efficiency of the aerosol sample introduction into the dc plasma. At atmospheric plasmas, the effect of magnetic field is reduced to Lorentz forces on the current carrying plasma, which produces motion of the plasma. The motion velocity of dc plasma caused by oscillating magnetic field was correlated to spectral emission enhancement of analytes introduced as aerosols. Emission enhancement is the consequence of the reduced barrier to introduction of analyte species and aerosol particles into the hot plasma region. Two hypotheses described in the literature for the origin of the barrier are considered: (i) barrier induced by temperature field is based upon the thermophoretic forces on the aerosol particles when their radius is comparable to the molecular free path in the surrounding gas and, (ii) barrier induced by radial electric field, recently described, that originates from gradients of charged particles in radial direction. Correlation between ionization energy of the analyte atoms with experimental emission enhancement obtained by the use of oscillating magnetic field indicates that mechanism (ii) based upon the radial electric field is predominant. The ultimate emission enhancement and possible analytical advantage is discussed. (c) 2005 Elsevier B.V. All rights reserved.
T2  - Spectrochimica Acta. Part B: Atomic Spectroscopy
T1  - Study of aerosol sample interaction with dc plasma in the presence of oscillating magnetic field
VL  - 60
IS  - 11
SP  - 1450
EP  - 1457
DO  - 10.1016/j.sab.2005.09.001
ER  - 
@article{
author = "Stoiljković, Milovan and Pavlović, Mirjana S. and Savović, Jelena and Kumanovic, M and Maninkovic, M",
year = "2005",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/2956",
abstract = "Oscillating magnetic field was used to Study the efficiency of the aerosol sample introduction into the dc plasma. At atmospheric plasmas, the effect of magnetic field is reduced to Lorentz forces on the current carrying plasma, which produces motion of the plasma. The motion velocity of dc plasma caused by oscillating magnetic field was correlated to spectral emission enhancement of analytes introduced as aerosols. Emission enhancement is the consequence of the reduced barrier to introduction of analyte species and aerosol particles into the hot plasma region. Two hypotheses described in the literature for the origin of the barrier are considered: (i) barrier induced by temperature field is based upon the thermophoretic forces on the aerosol particles when their radius is comparable to the molecular free path in the surrounding gas and, (ii) barrier induced by radial electric field, recently described, that originates from gradients of charged particles in radial direction. Correlation between ionization energy of the analyte atoms with experimental emission enhancement obtained by the use of oscillating magnetic field indicates that mechanism (ii) based upon the radial electric field is predominant. The ultimate emission enhancement and possible analytical advantage is discussed. (c) 2005 Elsevier B.V. All rights reserved.",
journal = "Spectrochimica Acta. Part B: Atomic Spectroscopy",
title = "Study of aerosol sample interaction with dc plasma in the presence of oscillating magnetic field",
volume = "60",
number = "11",
pages = "1450-1457",
doi = "10.1016/j.sab.2005.09.001"
}
Stoiljković, M., Pavlović, M. S., Savović, J., Kumanovic, M.,& Maninkovic, M. (2005). Study of aerosol sample interaction with dc plasma in the presence of oscillating magnetic field.
Spectrochimica Acta. Part B: Atomic Spectroscopy, 60(11), 1450-1457.
https://doi.org/10.1016/j.sab.2005.09.001
Stoiljković M, Pavlović MS, Savović J, Kumanovic M, Maninkovic M. Study of aerosol sample interaction with dc plasma in the presence of oscillating magnetic field. Spectrochimica Acta. Part B: Atomic Spectroscopy. 2005;60(11):1450-1457
Stoiljković Milovan, Pavlović Mirjana S., Savović Jelena, Kumanovic M, Maninkovic M, "Study of aerosol sample interaction with dc plasma in the presence of oscillating magnetic field" Spectrochimica Acta. Part B: Atomic Spectroscopy, 60, no. 11 (2005):1450-1457,
https://doi.org/10.1016/j.sab.2005.09.001 .
6
6
6

Geochemistry of the Cretaceous-Tertiary transition boundary at Blake Nose (NW Atlantic): Cosmogenic Ni

Premović, Pavle I.; Nikolic, ND; Pavlović, Mirjana S.; Panov, KI

(2004)

TY  - JOUR
AU  - Premović, Pavle I.
AU  - Nikolic, ND
AU  - Pavlović, Mirjana S.
AU  - Panov, KI
PY  - 2004
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/2758
AB  - The Cretaceous-Tertiary, (KT) boundary transition at the Blake Nose Plateau recovered by ODP Lea 171B (site 1049, hole A. core 17X. section 2) contains an ejecta bed (thickness ca. 17 cm) marking a late Cretaceous asteroid impact. The nature and geochemical composition of this bed imply that it originated mainly from the target rocks of the Chicxulub impact site (Yucatan Peninsula, Mexico). the site of the presumed asteroid impact. The ejecta bed of hole 1049A contains relatively high concentrations of Ni (up to 165 ppm) within the carbonate fraction. It is reasoned that this enhancement represents a sudden and rapid airfall of high cosmogenic Ni into he Blake Nose Basin. The source of the metal was the Chicxulub impacting (carbonaceous) chondrite. It is suggested that many calcareous planktons in the KT ocean surface water of the Blake Nose Plateau were probably vulnerable to the high influx of superacid rainfall and associated toxic metals (e.g., Ni) created by the impact.
T2  - Journal of the Serbian Chemical Society
T1  - Geochemistry of the Cretaceous-Tertiary transition boundary at Blake Nose (NW Atlantic): Cosmogenic Ni
VL  - 69
IS  - 3
SP  - 205
EP  - 223
DO  - 10.2298/JSC0403205P
ER  - 
@article{
author = "Premović, Pavle I. and Nikolic, ND and Pavlović, Mirjana S. and Panov, KI",
year = "2004",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/2758",
abstract = "The Cretaceous-Tertiary, (KT) boundary transition at the Blake Nose Plateau recovered by ODP Lea 171B (site 1049, hole A. core 17X. section 2) contains an ejecta bed (thickness ca. 17 cm) marking a late Cretaceous asteroid impact. The nature and geochemical composition of this bed imply that it originated mainly from the target rocks of the Chicxulub impact site (Yucatan Peninsula, Mexico). the site of the presumed asteroid impact. The ejecta bed of hole 1049A contains relatively high concentrations of Ni (up to 165 ppm) within the carbonate fraction. It is reasoned that this enhancement represents a sudden and rapid airfall of high cosmogenic Ni into he Blake Nose Basin. The source of the metal was the Chicxulub impacting (carbonaceous) chondrite. It is suggested that many calcareous planktons in the KT ocean surface water of the Blake Nose Plateau were probably vulnerable to the high influx of superacid rainfall and associated toxic metals (e.g., Ni) created by the impact.",
journal = "Journal of the Serbian Chemical Society",
title = "Geochemistry of the Cretaceous-Tertiary transition boundary at Blake Nose (NW Atlantic): Cosmogenic Ni",
volume = "69",
number = "3",
pages = "205-223",
doi = "10.2298/JSC0403205P"
}
Premović, P. I., Nikolic, N., Pavlović, M. S.,& Panov, K. (2004). Geochemistry of the Cretaceous-Tertiary transition boundary at Blake Nose (NW Atlantic): Cosmogenic Ni.
Journal of the Serbian Chemical Society, 69(3), 205-223.
https://doi.org/10.2298/JSC0403205P
Premović PI, Nikolic N, Pavlović MS, Panov K. Geochemistry of the Cretaceous-Tertiary transition boundary at Blake Nose (NW Atlantic): Cosmogenic Ni. Journal of the Serbian Chemical Society. 2004;69(3):205-223
Premović Pavle I., Nikolic ND, Pavlović Mirjana S., Panov KI, "Geochemistry of the Cretaceous-Tertiary transition boundary at Blake Nose (NW Atlantic): Cosmogenic Ni" Journal of the Serbian Chemical Society, 69, no. 3 (2004):205-223,
https://doi.org/10.2298/JSC0403205P .
3
4
3

A power interruption technique for determining the difference between electron and gas temperatures in the argon d.c. arc supplied with aqueous aerosol

Kuzmanović, Miroslav M.; Antić-Jovanović, Ankica; Stoiljković, Milovan; Pavlović, Mirjana S.; Marinković, Miloš

(2003)

TY  - JOUR
AU  - Kuzmanović, Miroslav M.
AU  - Antić-Jovanović, Ankica
AU  - Stoiljković, Milovan
AU  - Pavlović, Mirjana S.
AU  - Marinković, Miloš
PY  - 2003
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/2673
AB  - The difference between electron and gas temperatures in a low current U-shaped d.c. arc with aqueous aerosol supply was studied using a power interruption technique. Monitoring of the temporal evolution of recombination continuum after power switch-off revealed that it was necessary to do a correction of the measured values due to a change in electron concentration. It was shown that the plasma studied was a two temperature type and that the temperature difference ranges from 1850 K to 600 K for arc currents from 3 to 10.5 A, respectively. A comparison with literature results for pure argon arc plasma shows that aerosol introduction reduces the temperature difference.
T2  - Spectroscopy Letters
T1  - A power interruption technique for determining the difference between electron and gas temperatures in the argon d.c. arc supplied with aqueous aerosol
VL  - 36
IS  - 4
SP  - 303
EP  - 312
DO  - 10.1081/SL-120024580
ER  - 
@article{
author = "Kuzmanović, Miroslav M. and Antić-Jovanović, Ankica and Stoiljković, Milovan and Pavlović, Mirjana S. and Marinković, Miloš",
year = "2003",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/2673",
abstract = "The difference between electron and gas temperatures in a low current U-shaped d.c. arc with aqueous aerosol supply was studied using a power interruption technique. Monitoring of the temporal evolution of recombination continuum after power switch-off revealed that it was necessary to do a correction of the measured values due to a change in electron concentration. It was shown that the plasma studied was a two temperature type and that the temperature difference ranges from 1850 K to 600 K for arc currents from 3 to 10.5 A, respectively. A comparison with literature results for pure argon arc plasma shows that aerosol introduction reduces the temperature difference.",
journal = "Spectroscopy Letters",
title = "A power interruption technique for determining the difference between electron and gas temperatures in the argon d.c. arc supplied with aqueous aerosol",
volume = "36",
number = "4",
pages = "303-312",
doi = "10.1081/SL-120024580"
}
Kuzmanović, M. M., Antić-Jovanović, A., Stoiljković, M., Pavlović, M. S.,& Marinković, M. (2003). A power interruption technique for determining the difference between electron and gas temperatures in the argon d.c. arc supplied with aqueous aerosol.
Spectroscopy Letters, 36(4), 303-312.
https://doi.org/10.1081/SL-120024580
Kuzmanović MM, Antić-Jovanović A, Stoiljković M, Pavlović MS, Marinković M. A power interruption technique for determining the difference between electron and gas temperatures in the argon d.c. arc supplied with aqueous aerosol. Spectroscopy Letters. 2003;36(4):303-312
Kuzmanović Miroslav M., Antić-Jovanović Ankica, Stoiljković Milovan, Pavlović Mirjana S., Marinković Miloš, "A power interruption technique for determining the difference between electron and gas temperatures in the argon d.c. arc supplied with aqueous aerosol" Spectroscopy Letters, 36, no. 4 (2003):303-312,
https://doi.org/10.1081/SL-120024580 .
6
6
6

Temporal responses of spectral line intensities emitted by d.c. arc plasma with aerosol supply studied by power interruption technique

Kuzmanović, Miroslav M.; Pavlović, Mirjana S.; Savović, Jelena; Marinković, Miloš

(2003)

TY  - JOUR
AU  - Kuzmanović, Miroslav M.
AU  - Pavlović, Mirjana S.
AU  - Savović, Jelena
AU  - Marinković, Miloš
PY  - 2003
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/2626
AB  - The responses to the fast interruption of the arc current have been studied for the spectral line intensities of several elements emitted by U-shaped direct current (d.c.) arc plasma with aerosol supply. The arc was burned at atmospheric pressure. Solutions containing the investigated elements were introduced with a concentric glass nebulizer into the argon stream of 2.7 1 min(-1). The arc current of 6 A was interrupted in periods that lasted up to 200 mus. At the moment of power interruption, the spectral line intensities are either suddenly increased indicating Saha balance or suddenly decreased indicating Boltzmann balance. Plots of intensity vs. time are used to evaluate the mechanisms that maintain the populations of excited states in the stationary state and processes occurring in the plasma during the power-off period. Excited levels of the elements with high ionization energies, like Ar, H and O, are predominantly populated by three-body recombination process i.e. they are controlled by the Saha balance. Excited levels of elements with medium ionization energies are predominantly populated by collisions with electrons i.e. controlled by the Boltzmann balance. Some of the spectral lines of C, P and Hg with high-excited levels missed the sudden intensity change, a cooling jump, which could be interpreted by the presence of two opposite mechanisms, Saha and Boltzmann balances, that cancel out the effect. Spectral line responses of easily ionized elements were found to depend on the plasma region. In a 2-mm axis region, the intensities do not show a cooling jump, but increase slowly during the power-off period. At medium distances from the arc axis, the spectral lines show typical Boltzmann type response. Farther to the arc periphery, where the electron concentration is very low but emission is still high, the power interruption does not influence the intensities and this indicates that the excitation is not prevailed by electron collisions. (C) 2002 Elsevier Science B.V All rights reserved.
T2  - Spectrochimica Acta. Part B: Atomic Spectroscopy
T1  - Temporal responses of spectral line intensities emitted by d.c. arc plasma with aerosol supply studied by power interruption technique
VL  - 58
IS  - 2-3
SP  - 239
EP  - 248
DO  - 10.1016/S0584-8547(02)00256-2
ER  - 
@article{
author = "Kuzmanović, Miroslav M. and Pavlović, Mirjana S. and Savović, Jelena and Marinković, Miloš",
year = "2003",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/2626",
abstract = "The responses to the fast interruption of the arc current have been studied for the spectral line intensities of several elements emitted by U-shaped direct current (d.c.) arc plasma with aerosol supply. The arc was burned at atmospheric pressure. Solutions containing the investigated elements were introduced with a concentric glass nebulizer into the argon stream of 2.7 1 min(-1). The arc current of 6 A was interrupted in periods that lasted up to 200 mus. At the moment of power interruption, the spectral line intensities are either suddenly increased indicating Saha balance or suddenly decreased indicating Boltzmann balance. Plots of intensity vs. time are used to evaluate the mechanisms that maintain the populations of excited states in the stationary state and processes occurring in the plasma during the power-off period. Excited levels of the elements with high ionization energies, like Ar, H and O, are predominantly populated by three-body recombination process i.e. they are controlled by the Saha balance. Excited levels of elements with medium ionization energies are predominantly populated by collisions with electrons i.e. controlled by the Boltzmann balance. Some of the spectral lines of C, P and Hg with high-excited levels missed the sudden intensity change, a cooling jump, which could be interpreted by the presence of two opposite mechanisms, Saha and Boltzmann balances, that cancel out the effect. Spectral line responses of easily ionized elements were found to depend on the plasma region. In a 2-mm axis region, the intensities do not show a cooling jump, but increase slowly during the power-off period. At medium distances from the arc axis, the spectral lines show typical Boltzmann type response. Farther to the arc periphery, where the electron concentration is very low but emission is still high, the power interruption does not influence the intensities and this indicates that the excitation is not prevailed by electron collisions. (C) 2002 Elsevier Science B.V All rights reserved.",
journal = "Spectrochimica Acta. Part B: Atomic Spectroscopy",
title = "Temporal responses of spectral line intensities emitted by d.c. arc plasma with aerosol supply studied by power interruption technique",
volume = "58",
number = "2-3",
pages = "239-248",
doi = "10.1016/S0584-8547(02)00256-2"
}
Kuzmanović, M. M., Pavlović, M. S., Savović, J.,& Marinković, M. (2003). Temporal responses of spectral line intensities emitted by d.c. arc plasma with aerosol supply studied by power interruption technique.
Spectrochimica Acta. Part B: Atomic Spectroscopy, 58(2-3), 239-248.
https://doi.org/10.1016/S0584-8547(02)00256-2
Kuzmanović MM, Pavlović MS, Savović J, Marinković M. Temporal responses of spectral line intensities emitted by d.c. arc plasma with aerosol supply studied by power interruption technique. Spectrochimica Acta. Part B: Atomic Spectroscopy. 2003;58(2-3):239-248
Kuzmanović Miroslav M., Pavlović Mirjana S., Savović Jelena, Marinković Miloš, "Temporal responses of spectral line intensities emitted by d.c. arc plasma with aerosol supply studied by power interruption technique" Spectrochimica Acta. Part B: Atomic Spectroscopy, 58, no. 2-3 (2003):239-248,
https://doi.org/10.1016/S0584-8547(02)00256-2 .
11
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12