Problems of the speciation of chromium in soil samples

Peter Fodor, Lajos Fischer

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Different separation/detection methods (ion exchange, organic extraction, spectrophotometry) and four extraction media have been compared for the speciation of chromium. Due to the pH dependence of these methods only the spectrophotometric method using the diphenylcarbazide reaction has proved suitable for speciation analyses. If nitric acid is used for the initial extraction stage, problems are often encountered with the other method during subsequent speciation analysis. The reasons for this are discussed.

Original languageEnglish
Pages (from-to)454-455
Number of pages2
JournalFresenius' Journal of Analytical Chemistry
Issue number4-5
Publication statusPublished - Jan 1 1995


ASJC Scopus subject areas

  • Biochemistry

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