电感耦合等离子体质谱测定绿辉石中稀土元素  

Determination of Rare Earth Elements in Omphacite by ICP-MS

作　　者：张楠[1] 曾江萍[1] 郑智慷 魏双[1] 王家松[1] 王力强[1] ZHANG Nan;ZENG Jiang-ping;ZHENG Zhi-kang;WEI Shuang;WANG Jia-song;WANG Li-qiang(Tianjin Center of Geological Survey, China Geological Survey, Tianjin 300170, China)

机构地区：[1]中国地质调查局天津地质调查中心

出　　处：《广州化工》2019年第13期123-124,127,共3页GuangZhou Chemical Industry

基　　金：国土资源部公益性行业科研专项(201211056)

摘　　要：绿辉石中含有微量的稀土元素,其对揭示成矿物质来源具有十分重要的意义。采用微波消解分解绿辉石单矿物,结合电感耦合等离子体质谱(ICP-MS)对绿辉石单矿物中14个痕量稀土元素进行测定。并采用103Rh和185Re作内标元素补偿基体效应和灵敏度漂移,方法的检出限为0.006~0.013μg/L,方法精密度(RSD)为0.76%~2.24%,方法回收率为87.5%~106.3%。此方法溶样效率高,简便快捷准确。Omphacite contains trace rare earth elements, which is of great significance in revealing the source of ore-forming materials. Microwave digestion was used to decompose omphacite single minerals. 14 trace rare earth elements of omphacite single minerals were determined by ICP-MS. 103 Rh and 185 Re were used as internal standard elements to compensate for matrix effect and sensitivity drift. The detection limit of this method was 0.006~0.013 μg/L, RSD was 0.76%~2.24%, and the recovery rate was 87.5%~106.3%. This method has the advantages of high sample dissolution efficiency, simplicity, rapidity and accuracy.

关 键 词：绿辉石 稀土元素 电感耦合等离子质谱 微波消解 

分 类 号：O657[理学—分析化学]