ICP-AES法同时测定氯化锂和氢氧化锂中七种杂质元素  

Simultaneous Determination of Seven Impurity Elements in Lithium Chloride and Lithium Hydroxide by ICP AES

作　　者：施洪钧[1] 赵玉珍[1] 

机构地区：[1]中国科学院物理研究所

出　　处：《光谱实验室》1998年第3期39-42,共4页Chinese Journal of Spectroscopy Laboratory

摘　　要：本文报导了用ＩＣＰ－ＡＥＳ法同时测定ＬｉＣｌ和ＬｉＯＨ·Ｈ２Ｏ中７种杂质元素Ａｌ、Ｂａ、Ｃａ、Ｆｅ、Ｍｇ、Ｓｉ、Ｚｎ的分析方法。研究了基体元素锂对被测元素的基体效应，采用基体匹配法与背景扣除法进行校正。被测元素的检出限为０．１－９．４ｎｇ／ｍＬ，加标试验回收率为９２％－１０９％，当杂质元素含量为０．０００１％－０．０２８％时，相对标准偏差小于７％。方法简便、快速、准确，用于样品分析，取得了满意的结果。In this paper, a method has been studied for simultaneous determination of seven impurity elements Al , Ba , Ca , Fe , Mg , Si and Zn in LiCl and LiOH·H 2O by ICP AES. Matrix effect from lithium to the spectral lines of the elements determined were investigated and corrected by the matrix maching and background correction method. The detection limits of every element are 0.1-9.4ng/mL, The recoveries are 92%-109%, the relative standard deviations are less than 7% for impurity elements content 0.0001%-0.028%. This method is simple, rapid and accurate, and has been applied to the analysis of sample with satisfactory results.

关 键 词：ICP-AES 氯化锂 氢氧化锂 铝 钡 钙 铁 镁 硅 锌 杂质元素 分析 电感耦合等离子体发射光谱 

分 类 号：TQ131.11[化学工程—无机化工] O657.3[理学—分析化学]