Metal extraction from Cetraria islandica (L.) Ach. lichen using low pH solutions
Apstrakt
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).
Ključne reči:
cetraria islandica (L.) Ach. lichen / acid rain / extraction / heavy metalsIzvor:
Journal of the Serbian Chemical Society, 2008, 73, 4, 405-413Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Čučulović, Ana AU - Pavlović, Mirjana S. AU - Veselinović, Dragan S. AU - Miljanić, Šćepan S. PY - 2008 UR - https://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 = "Čučulović, Ana and Pavlović, Mirjana S. and Veselinović, Dragan S. and Miljanić, Šćepan S.", year = "2008", 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" }
Čučulović, A., Pavlović, M. S., Veselinović, D. S.,& Miljanić, Š. S.. (2008). Metal extraction from Cetraria islandica (L.) Ach. lichen using low pH solutions. in Journal of the Serbian Chemical Society, 73(4), 405-413. https://doi.org/10.2298/JSCO804405C
Čučulović A, Pavlović MS, Veselinović DS, Miljanić ŠS. Metal extraction from Cetraria islandica (L.) Ach. lichen using low pH solutions. in Journal of the Serbian Chemical Society. 2008;73(4):405-413. doi:10.2298/JSCO804405C .
Čučulović, Ana, Pavlović, Mirjana S., Veselinović, Dragan S., Miljanić, Šćepan S., "Metal extraction from Cetraria islandica (L.) Ach. lichen using low pH solutions" in Journal of the Serbian Chemical Society, 73, no. 4 (2008):405-413, https://doi.org/10.2298/JSCO804405C . .