Determination of arsenic and antimony by hydride generation atomic absorption spectrometry using a small hydride generator
- 1 January 1986
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Analytical Atomic Spectrometry
- Vol. 1 (2) , 125-130
- https://doi.org/10.1039/ja9860100125
Abstract
A sensitive method for the determination of arsenic and antimony by hydride generation atomic absorption spectrometry, using a glass vial (internal volume, 8.6 ml) as the hydride generator, is described. The optimum flow-rate of the carrier gas was 0.2 l min–1 and the hydrochloric acid concentration used was 0.25 M. The absolute sensitivities were 0.06 and 0.10 ng for arsenic and antimony, respectively. The relative standard deviations were around 2% for both elements. A masking solution consisting of thiourea and ascorbic acid proved to be effective for suppressing the effect of a number of interferents. The accuracy of the proposed method was checked by determining the contents of arsenic and antimony in two standard reference materials.Keywords
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