轻基体中稀土氧化物的X射线荧光分析：非相干散射应用研究

本文通过研究轻元素的非相干散机机制，将非相干散射和特征线以散射归－化相结合计算表观浓度，利用强度校正模型和线性方程组的最小二乘法回归分析以及实验室标样，建立了轻基体之－Ｌｉ２ＣＯ３中少量Ｓｃ２Ｏ３，Ｙ２Ｏ３，Ｌａ２Ｏ３，Ｔｍ２Ｏ３和Ｌｕ２Ｏ３的Ｘ射线荧光分析方法，本方法测定的精密度均优于４．０％，最佳的可达２．１％。这种定时分析方法具有准确，简便，快速和多元素同时测定等优点。

Inscatter Application Research: X- Ray Fluorance Analysis of Rare Earth Oxides in Light Matrix

In this paper,we have studred light elements inscatter,and have computed appearance concentration using scatter integration which combine inscatter intensity with charater line instensity.It has performed the Sc2O3,Y2O3,Tm2O3,Lu2O3,La2O3(content:0.3%-1.5%) quantificatton in Li2CO3 to select intensity correction medel,to calculate linear equations regression,to prepare a number of samples in our laboratory.Precision is more than 4%,and the best precision is up to 2.1%.Advantages of the method are accurate,simple,fast and can analysize more than one element simultaneously.