Simultaneous determination of the toxic trace metals Cd, Cu, Pb and Zn in soils by differential pulse anodic stripping voltammetry
作者： S. J. Reddy , P. Valenta , H. W. Nürnberg
DOI: 10.1007/BF00495840
关键词:
摘要: A convenient and accurate analytical procedure has been developed for the simultaneous determination of toxic trace metals Cd, Cu, Pb Zn in soils. The method is based on differential pulse anodic stripping voltammetry at hanging mercury drop electrode analyte resulting from digested soil. Pressurized wet digestion finely powdered soil a mixture HNO3-HCl optionally followed by UV irradiation to decompose dissolved organic matter, was used prepare voltammetric analysis. applicability proved analysis 12 samples various polluted unpolluted regions. accuracy verified with standard material SO-6 JRC, Ispra, parallel 8 different described relevant modes atomic absorption spectrometry as an independent method.
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