摘要
本文采用预镀铋膜法修饰玻碳电极,并用该电极对废水中微量铅和镉同时进行了阳极溶出伏安法测定,研究了预镀铋膜测定铅和镉的条件。实验结果表明:铅和镉在铋膜电极上可得到灵敏的电位溶出峰,峰高和溶出电位与汞膜电极法相近,使用预镀铋膜电极可避免使用汞电极带来的环境污染。
A modified glassy carbon electrode （GCE） was prepared by ex-situ plating bismuth film on the electrode. The electrode was utilized in simulataneous determination of Pb2＋ and Cd2＋ with anodic stripping voltammetry. The detection conditions were optimized. Results showed that sensitive potential stripping peak was obtained for Pb2＋ and Cd2＋ with the bismuth film electrode. The peak intensity and stripping potential obtained were similar to those gained with a mercury electrode. The results suggested that this bismuth film electrode could be helpful in avoiding the environmental pollution caused by the use of mercury electrode.
出处
《分析科学学报》
CAS
CSCD
北大核心
2010年第4期423-426,共4页
Journal of Analytical Science
基金
云南省教育厅科学研究基金(No.06Z048A)
曲靖师范学院科技创新团队项目资助
关键词
预镀铋膜
阳极溶出伏安法
铅
镉
Ex-situ plating bismuth film
Anodic stripping voltammeter
Lead
Cadmium
