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.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1989年第3期272-275,共4页
Chinese Journal of Analytical Chemistry
关键词
空气
锰
溶出伏安法
阳极
Manganese determination
Anodic stripping voltammetry
Air analysis
