FIELD: analytic chemistry. SUBSTANCE: method involves introducing copper powder into acid solution containing 4.61 mcg of gold and macroamounts of iron; mixing and introducing fine-dispersed lead and water suspension obtained by decomposition of Na+Pb pellets; settling and separating precipitant. The amount of gold extracted by this method is 99.6-99.8%. EFFECT: increased extent of metal extraction from iron-bearing solutions. 1 tbl
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