火试金捕集等离子体发射光谱法测定铜铅电解阳极泥中铂和钯

Determination of Platinum and Palladium in Anode Mud of Copper and Lead Electrolysis with Fire Assay Separation and ICP-AES

采用火试金分离捕集,电感耦合等离子体发射光谱法分析了铜铅电解阳极泥中的铂和钯,重点试验了银的沉淀分离条件,方法应用于实际样品的分析,加标回收率大于95%.用贫铂矿国家一级标准物质和铜阳极泥管理样分析验证方法,其结果与标准值相符.方法的精密度(RSD,n=5)分别为Pt 2.68%～3.04%,Pd 4.55%～8.36%.

Platinum and palladium in anode mud of copper and lead electrolysis were analyzed with fire assay attack separation and ICP-AES. The co-precipitation condition of silver with Pt and Pd was emphatically explored. The method was applied to real sample analysis with the recovery of greater than 95%. Low-eontent platinum ores and copper anode muds were analyzed with the method. The results are consistent with the certified values, with precision of 2.68% - 3.04% RSD （ n = 5） for platinum, and 4.55% - 8.36% RSD （n = 5 ） for palladium.