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  • Feasibility study of ion-chromatography microwave assisted on-line species conversion hydride generation atomic absorption spectrometry for selenium speciation analysis of biological material

Abstract

A method for selenium speculation based on ion-chromatography microwave assisted on-line species conversion hydride generation atomic absorption spectrometry is described. The conversion of selenium species into selenite was achieved by using hydrobromic acid and bromate. A potential interferent originating from the reagents was identified. Multivariate optimization of the IC-MW-HGAAS system was undertaken and the results show that the HBr/BrO(3) ratio is a very important parameter, which should be carefully controlled both to obtain a high conversion efficiency and to diminish the interferent.

Additional information

Authors: JOHANSSON M, IRMM, JRC-Geel (BE);BORDIN G, IRMM, JRC-Geel (BE);RODRIGUEZ A, IRMM, JRC-Geel (BE)
Bibliographic Reference: Article: ANALYST (1999)
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