原子吸收光谱法测定四氧化三锰产品中多种杂质元素  

Determination of Fe,Ca,Mg,K, Na and Cr in Mn_3O_4 Product by Flame Atomic Absorption Spectrometry

作　　者：姚俊[1] 姚祖凤[1] 肖卓炳[1] 陈上[1] 傅伟昌[1] 田莉红 

机构地区：[1]吉首大学生命科学与化学学院,湖南吉首416000 [2]花垣县华星化工厂,湖南花垣416200

出　　处：《化学世界》2000年第8期438-441,435,共5页Chemical World

基　　金：湖南省教委自然科学基金!项目 ( 99C69)

摘　　要：用盐酸溶解样品 ,火焰原子吸收光谱法测定四氧化三锰中铁、钙、镁、钾、钠 ,石墨炉原子吸收光谱法测定其中的铬。对测定条件进行了试验 ,找出了最佳溶样方法和酸度 ,并对共存元素的干扰及排除进行试验 ,获得了满意的效果。该法简便、快速、准确 ,样加标回收率为 98.6%～ 1 0 9.6%之间 ,相对标准偏差为 1 .61 %～ 4.96%之间 ,倍比实验、标准曲线法和标准加入法结果相吻合 ,适用于四氧化三锰样品中铁、钙、镁、钾、钠、铬元素的分析。Fe,Ca,Mg,K,Na in Mn 3O 4 product were determined by flame atomic absorption spectrometry, and chromium was determined by GFAAS after dissolving the sample with HCl(aq). The optimized conditions for the determination were investigated including method of dissolving and acidity, and influence of coexisting elements and exclusion of these influences. This method is rapid, accurate, and convenient. The recovery is 98.6%-109.6%, standard deviation 1.61%-4.96%. The result obtained by calibration curve method is in good conformity with the standard addition method and the double ratio experiments and method can be utilized in analysis of Fe, Ca, Mg, K, Na, Cr in Mn 3O 4 product.

关 键 词：四氧化三锰 原子吸收光谱法 杂质元素分析 

分 类 号：O614.711[理学—无机化学] O657.31[理学—化学]