Determination of total available antimony in marine sediments by slurry formation–hydride generation atomic absorption spectrometry. Applicability to the selective determination of antimony(III) and antimony(V)
- 1 January 1991
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in The Analyst
- Vol. 116 (10) , 1029-1032
- https://doi.org/10.1039/an9911601029
Abstract
A method is described for the determination of total antimony, extractable into 4 mol dm–3 HCl, and SbIII, which combines a slurry procedure with hydride generation atomic absorption spectrometry. The lack of a matrix effect allows the analytical results to be obtained with a simple aqueous working curve. The detection limit in solid samples is 13.3 and 8.35 ng g–1 for SbIII and total antimony, respectively. The proposed method for the determination of total antimony provides a better recovery than that obtained by digestion with a mixture of HNO3–H2SO4–HClO4 but worse than that obtained by digestion with HF.Keywords
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