Determination of silver in ores and metallurgical concentrates by a combination of fire-assay preconcentration (using tin as collector) and atomic-absorption spectrophotometry.
A new method is described for the determination of silver in ores and metallurgical concentrates. The procedure is based on collection of silver in a tin button during a fire assay fusion, and the subsequent determination by atomic-absorption spectrophotometry. The proposed method is rapid and free from inter-element interferences, and results obtained agree favourably with those obtained by alternative methods.
Moloughney
P E
PE
Fire-Assay Laboratory, Mineral Sciences Division, Mines Branch, Department of Energy, Mines and Resources, Ottawa, Canada.
Graham
J A
JA