Determination of selenium in foodstuffs by cathodic stripping voltammetry at a mercury-graphite electrode

O. G. Filichkina, E. A. Zakharova, G. B. Slepchenko

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Abstract

A universal procedure was developed for the voltammetric determination of total selenium in various foodstuffs. The procedure involves the mineralization of a test sample with magnesium nitrate followed by the reduction of selenium(VI) to selenium(IV) in 6 M HCl and the determination of selenium by cathodic square-wave voltammetry at a mercury-graphite electrode in an HCl solution in the presence of copper and mercury ions.

Original languageEnglish
Pages (from-to)481-486
Number of pages6
JournalJournal of Analytical Chemistry
Volume59
Issue number5
DOIs
Publication statusPublished - May 2004

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ASJC Scopus subject areas

  • Analytical Chemistry

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