Comparison of EDTA, HCl and sequential extraction procedures, for selected metals (Cu, Mn, Pb, Zn), in soils, riverine and marine sediments
作者： Lydia Leleyter , Christelle Rousseau , Laetitia Biree , Fabienne Baraud
DOI: 10.1016/J.GEXPLO.2012.03.006
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摘要: article i nfo Knowledge of the total concentration metals in soils and sediments is frequently insufficient to ascertain environmental risk. Simple sequential extractions are useful tools for estimating mobility metals. Many chemical extraction procedures have been proposed literature. This study compares efficiency three (two single procedures, using EDTA or HCl as reactant, a extraction) on soils, riverine, estuarine marine sediments. In case riverine similar results observed with 0.05 mol.L −1 0.2 extractions, whereas inefficient samples. Comparison obtained various samples, suggests that it necessary use unique procedure all The rather than HCl, reactant recommended. applied more aggressive (except evaluate Pb some samples). Assuming metal enrichments mainly anthropogenic origin these higher mobility, compared native metals, concluded that, estimation leaching better adapted Pb, suited Zn Cu.
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