Determination of As and Se in seawater by flow injection vapor generation ETV-ICP-MS

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TypeArticle
Journal titleAtomic Spectroscopy
ISSN0195-5373
Volume20
IssueMay/June 3
Pages7985; # of pages: 7
AbstractArsenic and selenium (IV) were determined in seawater following hydride generation (HG) by reaction with NaBH4 in an automated flow injection system. The hydrides were trapped on reduced palladium in a graphite furnace (ETV) and subsequently vaporized into an ICP for MS detection. This HG-ETV-ICP-MS approach afforded blank-limited absolute detection limits of 7 pg for As and 70 pg for Se, using 0.5 and 10 mL sample volumes, respectively, permitting their determination in samples of NASS-4 and NASS-5 seawater reference material. Precision of determination was 2.5% RSD for As at 1 μg/L and 10% for Se at 20 ng/L. Sample throughput was 8/h for As and 5/h for Se with interference-free quantitation of samples with the use of a standard calibration curve.
Publication date
LanguageEnglish
AffiliationNRC Institute for National Measurement Standards; National Research Council Canada
Peer reviewedNo
Identifier10094787
NRC number179
NPARC number8899340
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Record identifier2b85c287-4c4e-4dc6-854c-1a9eac5f0a9d
Record created2009-04-22
Record modified2016-05-09
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