Determination of tungsten in complex sulphide ore concentrates.
Determination of tungsten as the thiocyanato complex after separation as the alpha-benzoin oximate complex has been satisfactorily applied to a standard steel and a complex sulphide ore concentrate containing tungsten associated with considerable amounts of Mo, Cu, Bi, As, Pb, Zn, Fe and Sn.
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Mineral Sciences Laboratories, CANMET, 552 Booth Street, Ottawa, Ontario, Canada.