摘要
本文研究了用等离子质谱法测定高纯氧化镧中１４个稀土杂质；确定了仪器最佳工作条件；选择了测定同位素；用标准加入法校正基体的抑制效应，从而改善了测量精度；做了加料回收和试样分析。本法具有灵敏度高、流程简单、耗样少的优点，可用于５Ｎ～６Ｎ纯度的氧化镧分析。
A method for determination of 14 trace rare earth impurities in high purity La2O3 by ICP-MS was developed.The operation condition was optimized.The isotopes for determination was selected.Matrix suppression effect was calibrated by standard addition method.The ICP-MS have the advantages of low detection limits,simple sample preparation and low sample consumption.The method can be used for the determination of trace rare earth impurity in La2O3 with purity 99.999～999999%
出处
《稀土》
EI
CAS
CSCD
北大核心
1997年第6期25-29,共5页
Chinese Rare Earths
