空气中微量锰的阳极溶出伏安法测定  

DETERMINATION OF TRACE MANGANESE IN AIR BY ANODIC STRIPPING VOLTAMMETRY

作　　者：孙小欣[1] 黄庭[1] 

机构地区：[1]华西医科大学公共卫生学院

出　　处：《分析化学》1989年第3期272-275,共4页Chinese Journal of Analytical Chemistry

摘　　要：本文研究了空气中微量锰的阳极溶出伏安法测定。在玻碳汞膜电极上,锰于0.05mol/LNa_2B_4O_7.10H_2O(含2×10^(-4)mol/LHg^(2+)的溶液中,在-1.6V处有一个灵敏的阳极溶出峰。检测限为2ppb,锰浓度在0～45ppb与峰高成线性关系。用阳极溶出伏安法测定了空气样本中的微量锰,结果是满意的。Determination of trace Mn in air by anodic stripping voltammetry has been studied. A sensitive anodic stripping peak of Mn appears at -1.6V (vs Ag/AgCl 0.1mol/L KCI) in a solution of 0.05mol/L Na_2B_4O_7·10H_2O with 2×10^(-4) mol/L Hg^(2+) at mercury film glassy carbon electrode. The deposition potential has been chosen at -2.1V. Detection limit is 2ppb. The linear relationship betwoeen the peak height and the concentration of Mn occures in the range of 0—45ppb, Trace Mn in air samples has been determined by ASV and the results are satisfactory.

关 键 词：空气 锰 溶出伏安法 阳极 

分 类 号：O659.36[理学—分析化学]