Mihajlović, Ivana

Link to this page

Authority KeyName Variants
0198f58b-b401-46f6-a4a4-f3ad289862fb
  • Mihajlović, Ivana (3)
Projects

Author's Bibliography

Electrochemical oxidation of a complex mixture of phenolic compounds in the base media using PbO2-GNRs anodes

Savić, Branislava; Stanković, Dalibor M.; Živković, Sanja; Ognjanović, Miloš; Tasić, Gvozden S.; Mihajlović, Ivana; Brdarić, Tanja

(2020)

TY  - JOUR
AU  - Savić, Branislava
AU  - Stanković, Dalibor M.
AU  - Živković, Sanja
AU  - Ognjanović, Miloš
AU  - Tasić, Gvozden S.
AU  - Mihajlović, Ivana
AU  - Brdarić, Tanja
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9064
AB  - A novel anode based on PbO2-GNRs nanocomposites was synthesized in order to investigate the simultaneous electrochemical oxidation of phenolic compounds in a mixture of methyl and chloro substituted phenols in alkaline solution (pH = 8.3). The crystal structure, morphology and composition of the synthesized materials were characterized using X-ray powder diffraction (XRPD), field emission scanning electron microscopy with energy dispersive X-ray spectrometer (FESEM-EDX) and transmission electron microscopy (TEM). FESEM images confirmed the presence of PbO2 nanoparticles on the PbO2-GNRs composite. The cyclic voltammetry measurements of the PbO2-GNRs electrode in 0.1 M Na2SO4 electrolyte indicated the electrochemical oxidation of phenol via indirect mechanism by hydroxyl radicals. Electrolytic oxidation of phenolic compounds was performed under potentiostatic conditions at potentials 2.3 V and 3 V. Removal efficiency of phenolic compounds increased with increasing the time of electrolysis and applied potential, up to 78% for 300 min and potential of 3 V. GC–MS chromatograms confirmed that mechanism of phenolic compounds degradation is based on their dechlorination and demethylation followed by the process of aromatic ring degradation. Newly synthesized PbO2-GNRs as electrode material could be successfully implemented in wastewater treatment of phenolic compounds by the electrochemical oxidation process.
T2  - Applied Surface Science
T1  - Electrochemical oxidation of a complex mixture of phenolic compounds in the base media using PbO2-GNRs anodes
VL  - 529
SP  - 147120
DO  - 10.1016/j.apsusc.2020.147120
ER  - 
@article{
author = "Savić, Branislava and Stanković, Dalibor M. and Živković, Sanja and Ognjanović, Miloš and Tasić, Gvozden S. and Mihajlović, Ivana and Brdarić, Tanja",
year = "2020",
abstract = "A novel anode based on PbO2-GNRs nanocomposites was synthesized in order to investigate the simultaneous electrochemical oxidation of phenolic compounds in a mixture of methyl and chloro substituted phenols in alkaline solution (pH = 8.3). The crystal structure, morphology and composition of the synthesized materials were characterized using X-ray powder diffraction (XRPD), field emission scanning electron microscopy with energy dispersive X-ray spectrometer (FESEM-EDX) and transmission electron microscopy (TEM). FESEM images confirmed the presence of PbO2 nanoparticles on the PbO2-GNRs composite. The cyclic voltammetry measurements of the PbO2-GNRs electrode in 0.1 M Na2SO4 electrolyte indicated the electrochemical oxidation of phenol via indirect mechanism by hydroxyl radicals. Electrolytic oxidation of phenolic compounds was performed under potentiostatic conditions at potentials 2.3 V and 3 V. Removal efficiency of phenolic compounds increased with increasing the time of electrolysis and applied potential, up to 78% for 300 min and potential of 3 V. GC–MS chromatograms confirmed that mechanism of phenolic compounds degradation is based on their dechlorination and demethylation followed by the process of aromatic ring degradation. Newly synthesized PbO2-GNRs as electrode material could be successfully implemented in wastewater treatment of phenolic compounds by the electrochemical oxidation process.",
journal = "Applied Surface Science",
title = "Electrochemical oxidation of a complex mixture of phenolic compounds in the base media using PbO2-GNRs anodes",
volume = "529",
pages = "147120",
doi = "10.1016/j.apsusc.2020.147120"
}
Savić, B., Stanković, D. M., Živković, S., Ognjanović, M., Tasić, G. S., Mihajlović, I.,& Brdarić, T.. (2020). Electrochemical oxidation of a complex mixture of phenolic compounds in the base media using PbO2-GNRs anodes. in Applied Surface Science, 529, 147120.
https://doi.org/10.1016/j.apsusc.2020.147120
Savić B, Stanković DM, Živković S, Ognjanović M, Tasić GS, Mihajlović I, Brdarić T. Electrochemical oxidation of a complex mixture of phenolic compounds in the base media using PbO2-GNRs anodes. in Applied Surface Science. 2020;529:147120.
doi:10.1016/j.apsusc.2020.147120 .
Savić, Branislava, Stanković, Dalibor M., Živković, Sanja, Ognjanović, Miloš, Tasić, Gvozden S., Mihajlović, Ivana, Brdarić, Tanja, "Electrochemical oxidation of a complex mixture of phenolic compounds in the base media using PbO2-GNRs anodes" in Applied Surface Science, 529 (2020):147120,
https://doi.org/10.1016/j.apsusc.2020.147120 . .
1
26
10
24

Validation and uncertainty estimation of an analytical method for the determination of phenolic compounds in concrete

Savić, Branislava; Mihajlović, Ivana; Milutinović, Slobodan M.; Seović, Mina M.; Nikolić, Željka; Tošić, Miloš S.; Brdarić, Tanja

(2019)

TY  - JOUR
AU  - Savić, Branislava
AU  - Mihajlović, Ivana
AU  - Milutinović, Slobodan M.
AU  - Seović, Mina M.
AU  - Nikolić, Željka
AU  - Tošić, Miloš S.
AU  - Brdarić, Tanja
PY  - 2019
UR  - http://www.doiserbia.nb.rs/Article.aspx?ID=0352-51391800106S
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8199
AB  - Organic contaminants from building materials negatively affect the health of people. This study presents an analytical method for the simultaneous identification and quantification of 9 phenolic compounds, i.e., phenol, 2-chloro-phenol, 2,4-dimethylphenol, 2,4-dichlorophenol, 2,6-dichlorophenol, 4-chloro-3-methylphenol, 2,4,6-trichlorophenol, 2,3,4,6-tetrahlorophenol and pentachlorophenol, in concrete by a gas chromatographic method with mass spectrometric detection (GC–MS). By comparing the MS spectra of the test compounds with MS spectra of analytical standards, reliable identification was achieved. The method could be applied in a given range (from 0.01 to 7.5 mg kg -1 ) with appropriate parameters of precision, accuracy, repeatability and linearity. The developed method could be used for quality control testing of phenols in concrete during the construction of new buildings, old residences and construction waste. The measurement uncertainty of the phenolic compounds in concrete was evaluated using two approaches, i.e., GUM recommendations and a Monte Carlo method. Disagreement of those methods was observed. The Monte Carlo method could be used in the evaluation of combined measurement uncertainty for the determination of phenolic compounds in concrete. © 2019 Serbian Chemical Society. All rights reserved.
T2  - Journal of the Serbian Chemical Society
T1  - Validation and uncertainty estimation of an analytical method for the determination of phenolic compounds in concrete
VL  - 84
IS  - 1
SP  - 55
EP  - 68
DO  - 10.2298/JSC180518106S
ER  - 
@article{
author = "Savić, Branislava and Mihajlović, Ivana and Milutinović, Slobodan M. and Seović, Mina M. and Nikolić, Željka and Tošić, Miloš S. and Brdarić, Tanja",
year = "2019",
abstract = "Organic contaminants from building materials negatively affect the health of people. This study presents an analytical method for the simultaneous identification and quantification of 9 phenolic compounds, i.e., phenol, 2-chloro-phenol, 2,4-dimethylphenol, 2,4-dichlorophenol, 2,6-dichlorophenol, 4-chloro-3-methylphenol, 2,4,6-trichlorophenol, 2,3,4,6-tetrahlorophenol and pentachlorophenol, in concrete by a gas chromatographic method with mass spectrometric detection (GC–MS). By comparing the MS spectra of the test compounds with MS spectra of analytical standards, reliable identification was achieved. The method could be applied in a given range (from 0.01 to 7.5 mg kg -1 ) with appropriate parameters of precision, accuracy, repeatability and linearity. The developed method could be used for quality control testing of phenols in concrete during the construction of new buildings, old residences and construction waste. The measurement uncertainty of the phenolic compounds in concrete was evaluated using two approaches, i.e., GUM recommendations and a Monte Carlo method. Disagreement of those methods was observed. The Monte Carlo method could be used in the evaluation of combined measurement uncertainty for the determination of phenolic compounds in concrete. © 2019 Serbian Chemical Society. All rights reserved.",
journal = "Journal of the Serbian Chemical Society",
title = "Validation and uncertainty estimation of an analytical method for the determination of phenolic compounds in concrete",
volume = "84",
number = "1",
pages = "55-68",
doi = "10.2298/JSC180518106S"
}
Savić, B., Mihajlović, I., Milutinović, S. M., Seović, M. M., Nikolić, Ž., Tošić, M. S.,& Brdarić, T.. (2019). Validation and uncertainty estimation of an analytical method for the determination of phenolic compounds in concrete. in Journal of the Serbian Chemical Society, 84(1), 55-68.
https://doi.org/10.2298/JSC180518106S
Savić B, Mihajlović I, Milutinović SM, Seović MM, Nikolić Ž, Tošić MS, Brdarić T. Validation and uncertainty estimation of an analytical method for the determination of phenolic compounds in concrete. in Journal of the Serbian Chemical Society. 2019;84(1):55-68.
doi:10.2298/JSC180518106S .
Savić, Branislava, Mihajlović, Ivana, Milutinović, Slobodan M., Seović, Mina M., Nikolić, Željka, Tošić, Miloš S., Brdarić, Tanja, "Validation and uncertainty estimation of an analytical method for the determination of phenolic compounds in concrete" in Journal of the Serbian Chemical Society, 84, no. 1 (2019):55-68,
https://doi.org/10.2298/JSC180518106S . .
4
1
3

Monte Carlo simulation as an alternative approach for estimation of uncertainty measurement of 2,4 dimethylphenol

Savić, Branislava G.; Brdarić, Tanja; Mihajlović, Ivana; Milutinović, Slobodan; Pijović, Milena; Georgijević, Jelena M.; Tasić, Gvozden

(Belgrade : Society of Physical Chemists of Serbia, 2018)

TY  - CONF
AU  - Savić, Branislava G.
AU  - Brdarić, Tanja
AU  - Mihajlović, Ivana
AU  - Milutinović, Slobodan
AU  - Pijović, Milena
AU  - Georgijević, Jelena M.
AU  - Tasić, Gvozden
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12800
AB  - The estimation of uncertainty measurement using different approaches is increasingly applied to assess the reliability of results generated by applied analytical methods. This paper presents the Monte Carlo simulation model (MCS) for calculating the uncertainty of the measurement associated with the result of the analysis. The results of MCS were compared with the commonly used a standard method (GUM). The calculations of the measurement uncertainty were demonstrated in the case of the determination of 2,4-dimethylphenol by gas chromatography in concrete samples.
PB  - Belgrade : Society of Physical Chemists of Serbia
C3  - PHYSICAL CHEMISTRY 2018 : 14th international conference on fundamental and applied aspects of physical chemistry : Proceedings
T1  - Monte Carlo simulation as an alternative approach for estimation of uncertainty measurement of 2,4 dimethylphenol
VL  - 2
SP  - 785
EP  - 788
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12800
ER  - 
@conference{
author = "Savić, Branislava G. and Brdarić, Tanja and Mihajlović, Ivana and Milutinović, Slobodan and Pijović, Milena and Georgijević, Jelena M. and Tasić, Gvozden",
year = "2018",
abstract = "The estimation of uncertainty measurement using different approaches is increasingly applied to assess the reliability of results generated by applied analytical methods. This paper presents the Monte Carlo simulation model (MCS) for calculating the uncertainty of the measurement associated with the result of the analysis. The results of MCS were compared with the commonly used a standard method (GUM). The calculations of the measurement uncertainty were demonstrated in the case of the determination of 2,4-dimethylphenol by gas chromatography in concrete samples.",
publisher = "Belgrade : Society of Physical Chemists of Serbia",
journal = "PHYSICAL CHEMISTRY 2018 : 14th international conference on fundamental and applied aspects of physical chemistry : Proceedings",
title = "Monte Carlo simulation as an alternative approach for estimation of uncertainty measurement of 2,4 dimethylphenol",
volume = "2",
pages = "785-788",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12800"
}
Savić, B. G., Brdarić, T., Mihajlović, I., Milutinović, S., Pijović, M., Georgijević, J. M.,& Tasić, G.. (2018). Monte Carlo simulation as an alternative approach for estimation of uncertainty measurement of 2,4 dimethylphenol. in PHYSICAL CHEMISTRY 2018 : 14th international conference on fundamental and applied aspects of physical chemistry : Proceedings
Belgrade : Society of Physical Chemists of Serbia., 2, 785-788.
https://hdl.handle.net/21.15107/rcub_vinar_12800
Savić BG, Brdarić T, Mihajlović I, Milutinović S, Pijović M, Georgijević JM, Tasić G. Monte Carlo simulation as an alternative approach for estimation of uncertainty measurement of 2,4 dimethylphenol. in PHYSICAL CHEMISTRY 2018 : 14th international conference on fundamental and applied aspects of physical chemistry : Proceedings. 2018;2:785-788.
https://hdl.handle.net/21.15107/rcub_vinar_12800 .
Savić, Branislava G., Brdarić, Tanja, Mihajlović, Ivana, Milutinović, Slobodan, Pijović, Milena, Georgijević, Jelena M., Tasić, Gvozden, "Monte Carlo simulation as an alternative approach for estimation of uncertainty measurement of 2,4 dimethylphenol" in PHYSICAL CHEMISTRY 2018 : 14th international conference on fundamental and applied aspects of physical chemistry : Proceedings, 2 (2018):785-788,
https://hdl.handle.net/21.15107/rcub_vinar_12800 .