铂族元素中子活化分析的微型镍锍试金预富集方法研究  

Study on Micro Fire Assay with Nickel Sulphide for Determination of Platinum-group Elements by Neutron Activation Analysis

作　　者：李晓林[1] M.Ebihara 

机构地区：[1]中国科学院上海应用物理研究所核分析研究室 [2]Department of Chemistry,Graduate School of Science Tokyo Metropolitan University Tokyo1920397 Japan

出　　处：《岩矿测试》2005年第3期167-170,共4页Rock and Mineral Analysis

基　　金：国家自然科学基金资助项目(10375084)

摘　　要：建立了适用于小样品(≤1 g)中铂族元素分离富集的微型镍锍试金流程.讨论了试金熔剂、捕集剂的用量和比例,以及熔炼条件.化学回收实验显示铂族元素全流程回收率≥ 90%,分析精密度 (RSD,n=6) 为4.3%～7.7%.标准参考物质分析显示分析值与标准值基本吻合,表明所建立的微型镍锍试金流程是可靠的.The procedure of micro fire assay with nickel sulphide was developed for the determination of platinum-group elements （PGEs） in small samples （≤1 g）. The amount and ratios of flux mixture to collector and fusion conditions were discussed. The recoveries of the PGEs were measured. The results showed that the recov eries were ≥90% with the precision of 4.3% - 7.7qe RSD （n = 6）. Analyses of standard reference materials （SRM） indicted that the results are in good agreement with the certified values, showing that the procedure of micro fire assay with nickel sulphide is reliable.

关 键 词：铂族元素 镍锍试金 中子活化分析 

分 类 号：O614.82[理学—无机化学] O652.6[理学—化学]