Concentration-Spectrographic Determination of Parts per Billion of Some Impurities in Metallurgical Products
- 1 September 1970
- journal article
- research article
- Published by SAGE Publications in Applied Spectroscopy
- Vol. 24 (5), 514-518
- https://doi.org/10.1366/000370270774372551
Abstract
A method is described for the determination of Ag, As, Bi, Cd, Cu, Ge, In, Pb, Sb, Sn, Te, and l at the sub-part per million level in a variety of materials. The elements are concentrated as sulfides using molybdenum as a carrier. After conversion to MoO3, the residue is excited with a dc arc. Gold is used as both a chemical recovery and spectrographic internal standard. The method is applicable to any material whose matrix does not precipitate in acid sulfide solution. A single set of MoO3-base synthetic standards is used.Keywords
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