DT-1016型阴离子交换树脂分离富集金铂钯  

Separation and Preconcentration of Gold,Platinum and Palladium in Geological Samples with DT-1016 Anion Exchange Resin

作　　者：甘树才[1] 来雅文[1] 段太成[2] 曹淑琴 郭锦勇 赵炳南[1] 

机构地区：[1]吉林大学化学学院,吉林长春130026 [2]中科院长春应用化学研究所,吉林长春130022 [3]北京化工冶金研究院,北京101149

出　　处：《岩矿测试》2002年第2期113-116,共4页Rock and Mineral Analysis

基　　金：国家重点基础研究发展规划项目 (G19990 4 32 12 )

摘　　要：研究了DT - 1 0 1 6型阴离子交换树脂对超痕量Au、Pt、Pd的吸附性能及条件。在0 .0 2 5mol/LHCl介质中 ,流出速度为 0 .5～ 1 .0mL/min时 ,Au、Pt和Pd的富集效果最佳 ,吸附率分别为 99.72 %、99.60 %和 97.95 % ,共存离子无显著性影响。用等离子体质谱测定标准物质中Au、Pt和Pd ,其结果与标准值基本相符。检出限Au为 0 .2 7μg/L ,Pt为 0 .40 μg/L ,Pd为0 .1 9μg/L。对GBW 0 72 94铂族元素国家标准物质进行精密度试验 ,RSD(n =8)Au为 1 9.2 % ,Pt为 2 8.1 % ,Pd为 1 5 .6%。Separation and preconcentration of gold,platinum and palladium in geological samples with DT 1016 anion exchange resin have been studied in this paper. Au, Pt and Pd can be separated and concentrated quantitatively in a medium of 0.025 mol/L HCl and determined by ICP MS. The adsorption rates for Au,Pt and Pd are 99.72%,99.60% and 97.95% respectively. No interference from coexisting elements is found after separation. The detection limits for Au, Pt and Pd are 0.27?μg/L, 0.40?μg/L and 0.19?μg/L respectively. The method has been applied to the determination of Au, Pt and Pd in geological reference materials. The results are in agreement with certified values with precision of 19.2% RSD for Au ( n =8), 28.1% RSD for Pt ( n =8), and 15.6% RSD for Pd ( n =8).

关 键 词：阴离子交换树脂 DT-1016型树脂 分离 富集 金 铂 钯 火试金法 

分 类 号：O614.123[理学—无机化学] O614.826[理学—化学]