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.
出处
《光谱实验室》
CAS
CSCD
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
关键词
等离子体质谱法
氧化铽
稀土杂质
ICP-MS
Inductively Coupled Plasma-Mass Spectrometry,High Purity Terbium Oxide,Rare Earth Impurities.
