高纯Tb_4O_7中稀土杂质的ICP－MS法测定  

Determination of Rare Earth Impurities in Terbium Oxide by Inductively Coupled Plasma-Mass Spectrometry

作　　者：刘湘生[1] 蔡绍勤[1] 柳凤粉[1] 张楠[1] 

机构地区：[1]北京有色金属研究总院,北京科技大学

出　　处：《光谱实验室》1995年第5期82-85,共4页Chinese Journal of Spectroscopy Laboratory

基　　金：国家"八五"重点科技攻关课题

摘　　要：本文报导了高纯氧化铽中Ｌａ、Ｃｅ、Ｐｒ、Ｎｄ、Ｓｍ、Ｅｕ、Ｇｄ、Ｄｙ、Ｈｏ、Ｅｒ、Ｔｍ、Ｙｂ、Ｙ等１３种稀土杂质的电感耦合等离子体质谱测定方法。选择了仪器最佳操作参数，考察了质谱干扰和基体效应，选用Ⅰ作内标可基本克服基体效应，方法检出限为０．０１３－０．１１ｎｇ／ｍＬ，加标回收率为８７％－１０３％，重复精度（ｎ＝７）为２．２％－５．５％。方法快速、灵敏、准确。This paper reports direct determination of 13 rare earth (i.e.La,Ce,Pr,Nd,Sm,Eu,Gd,Dy,Ho,Er,Tm,Yb,Y) in high pure terbium oxide by inductively coupled plasma-mass spectrometry.Choosing the optimal operating parameters for instrument.Spectral interferences and matrix effect I,the matrix effect has been basically overcome.The detection limits are 0.013-0.11ng/mL,the recoveries for spiking samples are 87%-103%. the repeated precisions(n =7) are 2.2%-5.6%.This method is rapid.sensitive and accurate.

关 键 词：等离子体质谱法 氧化铽 稀土杂质 ICP-MS 

分 类 号：O614.33[理学—无机化学] O657.31[理学—化学]