A method is described in which Ag, As, Au, Bi, Cd, Ge, In, Mo, Pb, Sb, Sn, and Tl are simultaneously determined in a variety of metallurgical materials. Preconcentration and separation are achieved by coprecipitation with copper as mixed sulphides, and excitation is by means of the dc arc. Provision is made for the analysis of a wide variety of materials using a single set of synthetic standards.
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