Metal extraction from Cetraria islandica (L.) Ach. lichen using low pH solutions
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)2SO4 and solution B H2SO4- -HNO3-(NH4)2SO4-NH4NO3). The pH values of these solutions were 2.00, 2.58, 2.87, 3.28...
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Serbian Chemical Society
2008-01-01
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doaj-5052b813eea54e08b54f79c4d55945682020-12-30T07:54:49ZengSerbian Chemical Society Journal of the Serbian Chemical Society0352-51391820-74212008-01-0173440541310.2298/JSC0804405C0352-51390804405CMetal extraction from Cetraria islandica (L.) Ach. lichen using low pH solutionsČučulović Ana A.0Pavlović Mirjana S.1Veselinović Dragan S.2Miljanić Šćepan S.3INEP Institut za primenu nuklearne energije, ZemunInstitut za nuklearne nauke 'Vinča', Laboratorija za fizičku hemiju, BeogradFakultet za fizičku hemiju, BeogradFakultet za fizičku hemiju, BeogradExtraction 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)2SO4 and solution B H2SO4- -HNO3-(NH4)2SO4-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 lowest 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 (centers) of metal ion accumulation exist in the lichen (due to sorption, complex formation, or other processes present in the tissues).http://www.doiserbia.nb.rs/img/doi/0352-5139/2008/0352-51390804405C.pdfcetraria islandica (l.) ach. lichenacid rainextractionheavy metals |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Čučulović Ana A. Pavlović Mirjana S. Veselinović Dragan S. Miljanić Šćepan S. |
spellingShingle |
Čučulović 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 cetraria islandica (l.) ach. lichen acid rain extraction heavy metals |
author_facet |
Čučulović Ana A. Pavlović Mirjana S. Veselinović Dragan S. Miljanić Šćepan S. |
author_sort |
Čučulović Ana A. |
title |
Metal extraction from Cetraria islandica (L.) Ach. lichen using low pH solutions |
title_short |
Metal extraction from Cetraria islandica (L.) Ach. lichen using low pH solutions |
title_full |
Metal extraction from Cetraria islandica (L.) Ach. lichen using low pH solutions |
title_fullStr |
Metal extraction from Cetraria islandica (L.) Ach. lichen using low pH solutions |
title_full_unstemmed |
Metal extraction from Cetraria islandica (L.) Ach. lichen using low pH solutions |
title_sort |
metal extraction from cetraria islandica (l.) ach. lichen using low ph solutions |
publisher |
Serbian Chemical Society |
series |
Journal of the Serbian Chemical Society |
issn |
0352-5139 1820-7421 |
publishDate |
2008-01-01 |
description |
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)2SO4 and solution B H2SO4- -HNO3-(NH4)2SO4-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 lowest 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 (centers) of metal ion accumulation exist in the lichen (due to sorption, complex formation, or other processes present in the tissues). |
topic |
cetraria islandica (l.) ach. lichen acid rain extraction heavy metals |
url |
http://www.doiserbia.nb.rs/img/doi/0352-5139/2008/0352-51390804405C.pdf |
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