铅火试金预富集——ICP-AES测定铜阳极泥中的铂和钯

Determination of Platinum and Palladium in Copper Anode Mud by ICP-AES with Lead Fire Assaying Pre-Concentration

采用铅火试金预富集 ,ICP- AES法同时测定铜阳极泥中微量铂和钯含量。研究了银灰吹保护剂加入量对回收率的影响 ,优化了富集后金属合金的溶解方法及仪器工作参数。回收率 ,Pt:94 .0 %— 98.0 % ;Pd:99.0 %— 10 8.8% ,相对标准偏差均 <3% ,方法简便、快速。

The method of ICP-AES for simultaneous determination of Platinum and Palladium content in copper anode mud with lead fire assaying pre-concentration has been established.Effect of weight of silver on rate of recovery was studied.The method for dissolving metal granule produced in pre-concentration and instrument parameter were optimized.The relative standard deviations of the method are less than 3%,and the rate of recovery of 94.0%-98.0% for platinum and 99.0%-108.8% for palladium were obtained.The method is rapid,accurate,convenient.