ICP-OES法测定电解二氧化锰中的杂质元素

Determination of Impurity Elements in Electrolytic Manganese Dioxide by ICP-OES Method

在锰基体匹配体系下，利用电感耦合等离子体原子发射光谱法（ICP-OES法）测定电解二氧化锰中的钙、镁、钾、钠、钛、镉、铬，对分析线选择、酸度条件等进行了研究。实验确定了各元素分析线波长以及最佳酸度条件，方法的检出限在0．0006～0．019μg／mL之间；RSD0．44％～7．81％；回收率96．63％～103．0％。

This paper has made an analysis of the acidity conditions in determination of Ca, Mg, K, Na, Ti, Cd, and Cr in electrolytic manganese dioxide by inductively coupled plasma optical emission spectrometry （ICP-OES method ） with matrix matching. The experiment has confirmed wavelengths of analyzed elements and the best acidity condition of sample solution. The limit of detection is between 0. 000 6 - 0. 019 μg/mL, and RSD is between 0.44% - 7.81% with its recovery between 96.63% - 103.0%.