沉淀分离－火焰原子吸收光谱法连续测定锌精矿中杂质元素  

Determination of Impurity Elements in Zinc Concentrates by FAAS

作　　者：张永康[1] 姚俊[1] 许德政 庹永[1] 黄丽平 

机构地区：[1]湖南吉首大学化学系

出　　处：《岩矿测试》1996年第2期157-159,共3页Rock and Mineral Analysis

基　　金：湖南省教委自然科学基金

摘　　要：利用Ｚｎ（ＯＨ）＿２的两性沉淀富集待测杂质元素，分离高含量Ｚｎ以排除干扰，用火焰原子吸收法测定其中的杂质元素含量。实验结果表明：分离后残留的Ｚｎ对Ｆｅ、Ｃｄ、Ｎｉ、Ｍｎ、Ａｇ的测定无干扰；各元素之间互不干扰。加标回收率为９３％～１０６％，对菱锌矿中几种杂质元素进行测定，结果与ＩＣＰ－ＡＥＳ法相符，各元素测定的相对标准偏差（ｎ＝１２）为４．１％～８．８％。The amphoteric character of Zn(OH)_2 is used in matrix separation and impurity preconcentration in zinc concentrates analysis. Impurities of Fe, Cd, Ni, Mn and Ag are then determined by FAAS. The recoveries of standard addition for these impurities are 93%～106%. The results obtained in simthsonite samples are in good agreement with those obtained by ICP-AES with precision of 4.1%～8.8% RSD(n=12) for different elements.

关 键 词：锌 精矿 铁 镍 镉 银 光谱法 

分 类 号：P578.23[天文地球—矿物学] TD926.3[天文地球—地质学]