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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)
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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2.114
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Anmerkungen
Besondere Publikation
Auf Hompepage verbergern
Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
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
Sprache
englisch
Veröffentlichungsjahr
2003
HGF-Berichtsjahr
0
ISSN (print) / ISBN
0003-2670
e-ISSN
1873-4324
Zeitschrift
Analytica Chimica Acta
Quellenangaben
Band: 478,
Heft: 2,
Seiten: 219-227
Verlag
Elsevier
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Ecological Chemistry (IOEC)
PSP-Element(e)
G-505100-005
Erfassungsdatum
2002-12-31