螯合树脂分离富集—电感耦合等离子体质谱法测定矿石中铂、钯  

Determination of platinum and palladium in ore samples by inductively coupled plasma-mass spectroscopy combined with the chelating resin separation and preconcentration

作　　者：吴建政[1,2] 王琳[1,3] 唐志中[1,2] 来新泽[1,2] 孙勇[1,2] 严洁[1,2] 

机构地区：[1]河南省岩石矿物测试中心 [2]国土资源部贵金属分析与勘查技术重点实验室 [3]河南省地质调查院

出　　处：《黄金》2012年第8期53-55,共3页Gold

摘　　要：研究了LCS-200硫脲型螯合树脂对Pt、Pd的吸附性能,采用ICP-MS同时测定矿石中Pt、Pd。实验探讨了介质、酸度、树脂粒度、树脂用量、吸附方式及其他元素干扰等对Pt、Pd吸附效果的影响,并确定了仪器的最佳测试条件。该方法检出限Pt为0.1 ng/g、Pd为0.12 ng/g,测定国家一级标准样品中的Pt、Pd,其结果与标准值相符,相对标准偏差(RSD)Pt为3.8%～4.5%、Pd为4.1%～5.2%。该方法适用于矿石中Pt、Pd的测定。The adsorption property for platinum and palladium of the LCS-200 thiourea chelating resin and the simultaneous determination of Pt and Pd in ore samples by ICP-MS were studied.Influencing factors on the adsorption of Pt and Pd such as media,acidity,resin size,adsorption pattern,dosage of the resin,and the interference elements were discussed in detail and the optimized test conditions of devices are determined.The detection limit was 0.1 ng/g for Pt and 0.12 ng/g for Pd.The RSD was 3.8 %-4.5 % for Pt and 4.1 %-5.2 % for Pd,and the determination of the national primary standard substances using the method obtains consistent results.The method is suitable for the determination of Pt and Pd in ore samples.

关 键 词：LCS-200硫脲型螯合树脂 分离富集 ICP-MS 铂 钯 

分 类 号：O657.63[理学—分析化学]