Graphite furnace atomic absorption spectrometric determination of nickel at sub-ng g–1 levels in marine samples by carbonyl generation with in situ pre-concentration

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DOIResolve DOI: http://doi.org/10.1039/JA9890400443
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TypeArticle
Journal titleJournal of Analytical Atomic Spectrometry
ISSN0267-9477
Volume4
Issue5
Pages443446; # of pages: 4
AbstractReduction of NiII in solution by addition of BH4– and its carbonylation in a stream of CO-Ar serves to transfer the volatile Ni(CO)4 from a generation cell to a pre-heated graphite furnace where it undergoes decomposition and deposition at T > 500 °C. Subsequent atomisation at T > 2700 K and measurement of the atomic absorption serves to quantify Ni in test samples by direct comparison with signals derived from identically treated solutions of standards. The system is ca. 80% efficient and is characterised by a concentration detection limit (3σ) of 4 ng l–1, based on a 10-ml test sample. Results are presented for the analyses of several natural water and biological reference materials.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada
Peer reviewedNo
Identifier10391186
NRC number1256
NPARC number5763529
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Record identifierc64608cd-d825-4d5a-abd3-51661b0d32be
Record created2009-03-29
Record modified2016-05-09
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