用电感耦合等离子体质谱法测定高纯稀土中稀土杂质时的基体影响  

Matrix Effect in the Determination of Rare Earth Impurities in High Purity Rare Earths by Inductively Coupled Plasma Mass Spectrometry

作　　者：刘湘生[1] 蔡绍勤[1] 柳凤粉[2] 张楠[1] 鲁毅强[2] 

机构地区：[1]北京有色金属研究总院,北京100088 [2]北京科技大学

出　　处：《分析化学》1997年第6期652-655,共4页Chinese Journal of Analytical Chemistry

基　　金：国家"八五"重点科技攻关课题

摘　　要：考察了基体对待测稀土杂质元素信号的影响，研究了内标对基体效应的补偿作用。对于不同的基体元素最佳的内标元素是不一致的，Ｇａ、Ｉｎ、Ｉ、Ｃｓ和Ｔ１是稀土纯度分析中合适的内标元素。内标法简便易行，效果好，其测定方法的精度和回收率令人满意。This paper has discussed the effect of matrix on the signal for rare earth impurities to be determined and also studied the compensation of internal standard for the matrix effect. For different matrix elements, the optimum internal elements are inconsistent. Ga, In, I, Cs and T1 are suitable internal standard elements in the analysis of high putty rare earths. Internal standard method is simple and effective, its precision and recoveries are satisfactory.

关 键 词：高纯稀土 稀土杂质 基体效应 内标 ICP MS 内标 

分 类 号：O614.33[理学—无机化学]