Abstract
Neutron activation analysis has been applied to the determination of ultra-trace amounts of arsenic based on the substoichiometric extraction of As(III) with thionalide. The arsenic content in high-purity trichlorosilane or silicon can be determined by the proposed method down to sub-ppb range with a very good reproducibility. Also, the data obtained were compared with results from atomic absorption spectrophotometry.
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Chen, S.G. Comparison of methods for the determination of ultra-trace amounts of arsenic in high-purity trichlorosilane by NAA and AAS. Journal of Radioanalytical and Nuclear Chemistry, Articles 91, 107–114 (1985). https://doi.org/10.1007/BF02036315
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DOI: https://doi.org/10.1007/BF02036315