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Determination of trace amounts of tin in geological materials by atomic absorption spectrometry

E. P. Welsch·T. T. Chao
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Abstract

An atomic absorption method is described for the determination of traces of tin in rocks, soils, and stream sediments. A dried mixture of the sample and ammonium iodide is heated to volatilize tin tetraiodide -which is then dissolved in 5 % hydrochloric acid, extracted into TOPO-MIBK, and aspirated into a nitrous oxide-acetylene flame. The limit of determination is 2 p.p.m. tin and the relative standard deviation ranges from 2 to 14 %. Up to 20 % iron and 1000 p.p.m. Cu, Pb, Zn, Mn, Hg, Mo, V, or W in the sample do not interfere. As many as 50 samples can be easily analyzed per man-day.

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BibTeXRIS

E. P. Welsch, T. T. Chao. 1976. Determination of trace amounts of tin in geological materials by atomic absorption spectrometry. https://doi.org/10.1016/s0003-2670(01)84611-0

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