光度法直接测定原生富铂矿及浮选精矿中痕量铂、钯的研究  

Study and Application on Spectrophotometric Analysis of Trace Platinum and Palladium in Primary Mineral and Floated Concentrate

作　　者：李振亚[1] 马媛[1] 吴立生[1] 

机构地区：[1]昆明贵金属研究所,昆明650221

出　　处：《分析试验室》2000年第4期5-7,共3页Chinese Journal of Analysis Laboratory

基　　金："九五"国家重点科技攻关项目! ( 97-2 2 7)

摘　　要：报道了一个不经预分离富集 ,光度法直接测定原生富铂矿及浮选精矿中的铂、钯的方法。考察了矿样分解方法 ,测定条件的选择 ,大量铁、镍、铜等 2 0余种共存元素的干扰及消除 ,测定方法的精密度和准确度等。在 SG-1 (原生富铂矿 )和 SG98-A(浮选精矿 )样品中 ,测得铂的含量为 5.96± 0 .2 7μg/ g和 2 7.9± 0 .70 μg/ g,钯的含量为 7.71± 0 .2 5μg/ g和 3 9.2± 1 .0 0 μg/ g,结果与铅试金富集法一致。This paper reports a new method to determine directly platinum and palladium in the primary mineral and floated concentrate by spectrophotometry.The samples do not require preconcentration and separation.The decomposition techniques of the samples as well as the interference and elimination of most common ions or elements have been tested.This method has been used for the analysis of practical mineral specimens containing platinum and palladium in the range of x～xx g/t,the accuracy and relative standard deviation of method are saisfactory.

关 键 词：双波长分光光度法 矿石 铂 钯 测定 

分 类 号：P575.4[天文地球—矿物学] O614.82[天文地球—地质学]