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Extraction of arsenic from soil digests with dithiocarbamates for ICP-AES analysis



Extraction of arsenic from soil digests with dithiocarbamates for ICP-AES analysis



Communications in Soil Science and Plant Analysis 17(2): 125-133



Arsenic(III) in soil digests can be quantitatively extracted with pyrrolidinedithiocarbamate into chloroform at pH 1. The organic bound arsenic in chloroform can be back-extracted into a 25% nitric acid solution for instrumental analysis. For total arsenic determination, arsenic(V) in soil digests must be reduced to arsenic(III) by sodium thiosulfate prior to the extraction.

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Accession: 001364930

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DOI: 10.1080/00103628609367702



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