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Issue 11, 2012
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A MSFIA system for selenium speciation by atomic fluorescence spectrometry

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Abstract

In the present work a new automated MSFIA system was developed for selenium speciation using a non-chromatographic technique. Selenite, selenomethionine, and selenate were analyzed by the proposed system. Selenomethionine was oxidized by UV-light to selenite. Selenate was reduced to selenite by UV-light under alkaline medium and halides. The photochemical behaviors of both compounds were investigated. The effects of halides onto selenate reduction by UV-light were compared. Hydride generation atomic fluorescence spectrometry was selected as a detection technique due to its sensitivity and selectivity. Detection limits of 0.11, 0.12, and 0.13 μg L−1 were obtained to selenite, selenomethionine, and selenate respectively. Some environmental samples were analyzed with recoveries close to 100%.

Graphical abstract: A MSFIA system for selenium speciation by atomic fluorescence spectrometry

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Publication details

The article was received on 04 Jul 2012, accepted on 28 Aug 2012 and first published on 29 Aug 2012


Article type: Paper
DOI: 10.1039/C2JA30198A
J. Anal. At. Spectrom., 2012,27, 1858-1862

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    A MSFIA system for selenium speciation by atomic fluorescence spectrometry

    A. M. Serra, J. M. Estela and V. Cerdà, J. Anal. At. Spectrom., 2012, 27, 1858
    DOI: 10.1039/C2JA30198A

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