X射线荧光光谱无标半定量分析稀土元素方法的改进  

A Semi-quantitative Method Improved for Rare-earth Element Analysis by XRF without Standards

作　　者：张淑英[1] 卜赛斌[1] 

机构地区：[1]有色金属研究总院,北京100088

出　　处：《岩矿测试》2003年第1期37-39,43,共4页Rock and Mineral Analysis

基　　金：有色金属研究总院青年基金资助(5144)

摘　　要：在Philips公司提供的X射线荧光光谱基本参数法半定量分析的SemIQ软件基础上引入重稀土元素的分析,用光谱纯的稀土氧化物与四硼酸锂熔融制备标样,重新建立一套半定量分析方法,使原软件不能分析的Dy、Ho、Er元素也可进行半定量分析,并提高了Eu、Gd、Tb、Tm、Yb、Lu元素分析的准确度。应用该方法进行了大量稀土样品的半定量分析,并与原软件方法对照,结果明显改善。Based on the semiquantitative analytical software of SemIQ provided by Philips company,a more powerful analytical method which can analyze heavy rareearth elements (HREEs) was developed. The standards were prepared withrareearth oxides fused with lithium tetraborate and a new set of analytical procedure was established for semiquantitative analysis of HREEs including Dy, Ho and Er, which could not be analyzed by original SemIQ.And the accurate for Eu,Gd,Tb,Tm,Yb and Lu determination is also remarkably improved.The results of rare earth elements by the new method were compared with those from the old SemIQ method with satisfactory result.

关 键 词：X射线荧光光谱 半定量分析 稀土元素 稀土氧化物 四硼酸锂 稀土样品 

分 类 号：P575.4[天文地球—矿物学]