Document Detail


Microwave assisted reduction of Se(VI) to Se(IV) and determination by HG/FI-ICP/MS for inorganic selenium speciation.
MedLine Citation:
PMID:  18967092     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Speciation of inorganic selenium using hydride generation method is a widespread analytical method nowadays. However, a reduction step of Se(VI) to Se(IV) is necessary as the hydride-forming species is HSeO(3)(-) (oxydation state+IV). This paper describes the development of a batch assisted microwave system allowing a rapid (<5 min) conversion of Se(VI) to Se(IV). Hydride generation is performed by a flow injection system and detection by ICP/MS. Detection limits of 6 and 8 pg for Se(IV) and for Se(VI) (by using a sample loop of 200 mul) respectively have been achieved. This method has been validated by participating in a European certification exercise for inorganic Se speciation in aqueous solutions.
Authors:
R Muñoz Olivas; O F Donard
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Talanta     Volume:  45     ISSN:  0039-9140     ISO Abbreviation:  Talanta     Publication Date:  1998 Mar 
Date Detail:
Created Date:  2008-10-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2984816R     Medline TA:  Talanta     Country:  England    
Other Details:
Languages:  eng     Pagination:  1023-9     Citation Subset:  -    
Affiliation:
Laboratoire de Chimie Bio-Inorganique et Environement, CNRS 132, Université de Pau et des Pays de l'Adour, Pau et des Pays de l'Adour, 64000, Pau, France.
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