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

January 1, 1976

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.

Publication Year 1976
Title Determination of trace amounts of tin in geological materials by atomic absorption spectrometry
DOI 10.1016/S0003-2670(01)84611-0
Authors E. P. Welsch, T. T. Chao
Publication Type Article
Publication Subtype Journal Article
Series Title Analytica Chimica Acta
Index ID 70010860
Record Source USGS Publications Warehouse