The correlation of the values of plant-available lead and cadmium in soil determined using different types of extragents

Autor:	Dragan Markovic, Ankica Savin, Dragan S. Veselinović
Rok vydání:	2004
Předmět:	lead Cadmium cadmium Chemistry Extraction (chemistry) Mineralogy chemistry.chemical_element Soil classification General Chemistry soil lcsh:Chemistry metal extraction lcsh:QD1-999 Chernozem Nuclear chemistry
Zdroj:	Journal of the Serbian Chemical Society, Vol 69, Iss 12, Pp 1145-1151 (2004)
ISSN:	1820-7421 0352-5139
DOI:	10.2298/jsc0412145s
Popis:	The plant-available amount of Pb and Cd in soil was determined by extraction using the solutions: 1) 0.5 M Na 2 EDTA, pH 5.2; 2) 1 M KCl, pH 7.0; 3) 0.1 M KCl, 0.05 MN a 2 EDTA, pH 6.2; 4) 2%C H 3COOH, pH 2.5 and 5) 1 M CH3COONH4 ,p H 4.8. Chernozem and hydromorphic black soil types from the Middle Banat were used. It can be concluded that the values of the plant-available amounts of Pb and Cd in a soil de- pends on the stability constants of their complexes with ligands in the extraction solu- tion. The conversion factors for the recalculation of the amounts of Pb and Cd obtained using the citted extractants have been calculated.
Databáze:	OpenAIRE
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