Optimization of the reduction of Se(VI) to Se(IV) in a microwave oven

C. Brunori, M.B. De La Calle-Guntiñas, R. Morabito

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Abstract

Parameters for the reduction of Se(VI) to Se(IV) in HCl medium by heating in a microwave oven have been optimized. The reduction resulted to be quantitative applying 100% power, corresponding to 600 W heating for 2 min in 6 mol/L or for 3 min in 4 mol/L HCl. The behavior of selenomethionine and selenocystine under the optimized reduction conditions was studied in order to evaluate a possible interference of these selenium species in the determination of Se(VI). The final determination of Se(IV), and Se(VI) were done by hydride generation-atomic absorption spectrometry. The analytical merits of the method are reported. The method was applied to the selective determination of Se(IV), and Se(VI) in spiked river and lake water. © Springer-Verlag 1998.
Original languageEnglish
Pages (from-to)26 - 30
Number of pages5
JournalFresenius Zeitschrift fur Analytische Chemie
Volume360
Issue number1
DOIs
Publication statusPublished - 1998
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Biochemistry

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