Summary
A method has been developed for the determination of tin in high-purity gallium using HG-GFAAS. Stannane was generated and collected in 0.01 mol/l silver nitrate solution and tin was determined by GFAAS. Silver nitrate solution acts as a trapping agent as well as a chemical modifier for the enhancement of the tin absorbance signal. The limit of detection is 36 μg/kg. The recovery of tin is 90–100%. Molybdenum was used as an additional modifier.
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Formerly in Analytical Chemistry Division, BARC, Bombay
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Sahayam, A.C., Natarajan, S. & Gangadharan, S. Determination of tin in high-purity gallium by hydride generation — graphite furnace atomic absorption (HG-GFAAS). Fresenius J Anal Chem 346, 961–963 (1993). https://doi.org/10.1007/BF00322759
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DOI: https://doi.org/10.1007/BF00322759