Cuculovic, Ana A.

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  • Cuculovic, Ana A. (2)
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Author's Bibliography

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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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 .
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