Lead Bead Method of Spectrographic Analysis of Platinum Metals, Gold, Silver, and Bismuth in Sulphide and Uranium Ores

IN THE COURSE of a spectrographic investigation of the platinum metal content of various minerals in sulphide ores, the use of fire-assay beads dissolved in goldamalgam ( 1) was found suitable for the quantitative determination of palladium and platinum. Later work on platinum and bismuth-rich beads showed however, that these could not always be readily mixed uniformly in the amalgam.
Keywords: analysis, Gold, Lead, Lead Pb, Metallurgy-'Queen's University, rhodium, Ruthenium ... Yz, Spectrographic Study of Platinum, metals, Ore, Ores, Platinum
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