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Ochsenkühn-Petropoulou, M.* ; Michalke, B. ; Kavouras, D.* ; Schramel, P.

Selenium speciation analysis in a sediment using strong anion exchange and reversed phase chromatography coupled plasma-mass spectrometry.

Anal. Chim. Acta 478, 219-227 (2003)
DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
An analytical procedure for selenium speciation of analysis of selenourea (SeU), selenoethionine (SeE), selenomethionine (SeM), Se(VI), Se(IV), dimethylselenide (dMeSe) and dimethyldiselenide (dMedSe) was developed, based on two complementary liquid chromatography (LC) techniques coupled with inductively coupled plasma-mass spectrometry (ICP-MS). Specifically, strong anion exchange (SAX) chromatography coupled with ICP-MS was used for the separation and quantification of all the earlier mentioned Se compounds, except for the two methyl selenides, which could be separated and determined by reversed phase chromatography coupled with ICP-MS. This procedure was applied to a soil sample from the warm springs area of Thermopyles (Greece). For leaching the Se species from the soil sample, four extraction methods, using water at ambient temperature, hot water, methanol and 0.5 M HCl, were tested for their efficiency of extracting the different Se species. The speciation results obtained by the LC-ICP-MS methods were compared with those obtained by voltammetric techniques. The determination of total selenium in the sample was achieved by graphite furnace atomic absorption spectrometry, as well as by ICP-atomic emission spectrometry, after suitable digestion of the sediment sample.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter Selenium speciation; Sediments; Strong anion exchange chromatography; Reversed phase chromatography; Graphite furnace atomic absorption spectrometry; Iductively coupled plasma-atomic emission spectrometry; Inductively coupled plasma-mass spectrometry
ISSN (print) / ISBN 0003-2670
e-ISSN 1873-4324
Zeitschrift Analytica Chimica Acta
Quellenangaben Band: 478, Heft: 2, Seiten: 219-227 Artikelnummer: , Supplement: ,
Verlag Elsevier
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Ecological Chemistry (IOEC)