Electroanalytical methods for determination of the metal content and acetic-acid-available metal fractions in soils |
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Authors: | Kowalska Joanna Krasnodêbska-Ostrêga Beata Golimowski Jerzy |
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Institution: | Warsaw University, Chemistry Department, 02-093 Warsaw, Pasteura St.1, Poland. askow@chem.uw.edu.pl |
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Abstract: | The pseudo-total and available arsenic, cadmium, and lead content of soils have been determined by stripping voltammetry with a hanging-mercury-drop electrode and by atomic absorption spectrometry with electrothermal atomization. For determination of pseudo-total metals microwave digestion with a mixture of HNO3 and HClO4, with and without addition of HF, was investigated. The single-extraction procedure with 0.43 mol L-1 CH3COOH, proposed by BCR, was used to assess the availability of metals in soils. The results obtained were validated by analysis of a certified reference material. |
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