Quantification of arsenic species in a river water reference material for trace metals by graphite furnace atomic absorption spectrometric techniques

The forms of arsenic in a river water reference material were determined by atomic absorption spectrometry after concentration on a strong cation exchange resin. The fractionation/quantification scheme is shown diagrammatically. About 71 per cent of total arsenic was present as trivalent and pentava...

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Published inAnalyst (London) Vol. 114; no. 11; pp. 1393 - 1396
Main Authors Sturgeon, Ralph E., Siu, K. W. Michael, Willie, Scott N., Berman, Shier S.
Format Journal Article
LanguageEnglish
Published 1989
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Summary:The forms of arsenic in a river water reference material were determined by atomic absorption spectrometry after concentration on a strong cation exchange resin. The fractionation/quantification scheme is shown diagrammatically. About 71 per cent of total arsenic was present as trivalent and pentavalent arsenic and dimethylarsenic acid. A significant amount (about 22 per cent) was present as a relatively inert and unidentified species, with similar but not identical properties to arsenobetaine. The relative amounts of the different arsenic species remained unaltered during storage for 13 months. There are 34 references.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0003-2654
1364-5528
DOI:10.1039/AN9891401393