ICP－AES中迭代干扰校正法在稀土配分上的应用

DETERMINATION OF RARE EARTH ELEMENTS BY THE METHOD OF INTERFERENCE COEFFICIENT REPEATED CORRECTION WITH ICP-AES

本文采用干扰系数迭代校正法测定稀土氧化物富集样中稀土元素的含量。应用迭代校正程序，计算机可以迅速得出准确结果。为了减少分析波长选择的盲目性，建立了一套扫描峰形图谱库。将ＩＣＰ－ＡＥＳ与微机联用直接选出了各个稀土元素的最优测量条件，综合确定仪器的最佳工作参数。本法的回收率为９０～１０８％，Ｒ．Ｓ．Ｄ小于６％。

The correction method of interference coefficient repeated correction was applied to the determination of rare earth elements in rich rare earth oxide ore by ICP-AES and the corresponding computer soft system was developed. Effects of acidity, power,the flow rate of carrier gas, the observation height and coexistent elements on the determined elements were studied.The interference coefficient of each rare earth element has been determined. The rate of recovery is 90-108%,and the relative standard error within 6%.