| 同位镀锑膜修饰电极方波溶出伏安法同时测定痕量锡、镉 |
| |
| 引用本文： | 丁亚萍,姜宪尘,杨勇,牟婧男,张玉雪,杜晓燕,李茜. 同位镀锑膜修饰电极方波溶出伏安法同时测定痕量锡、镉[J]. 中国卫生检验杂志, 2011, 0(9) |
| |
| 作者姓名： | 丁亚萍 姜宪尘 杨勇 牟婧男 张玉雪 杜晓燕 李茜 |
| |
| 作者单位： | 哈尔滨医科大学公共卫生学院;吉林省辽源市中心医院; |
| |
| 基金项目： | 国家自然科学基金项目(30972488); 黑龙江省教育厅科学技术研究项目(11541207) |
| |
| 摘 要： | 目的:建立同位镀锑膜电极测定痕量锡和镉的新方法。方法:在玻碳电极上,采用同位镀锑的方法富集被测离子并形成锑膜,利用方波脉冲伏安法使富集的Sn、Cd重新溶出,根据溶出峰电流,实现对痕量Sn2+、Cd2+的同时测定。在十六烷基三甲基溴化胺(CTAB)存在的条件下,溶出峰形良好。讨论了底液的pH值、CTAB浓度、富集时间、富集电位和不同的扫描速率对金属离子溶出峰的影响。结果:在优化实验条件下,Sn2+和Cd2+的线性范围分别为5μg/L～180μg/L和10μg/L～170μg/L,最低检出限分别为0.46μg/L和2μg/L。利用本方法测定了茶叶中Sn2+的含量,结果令人满意。结论:锑膜电极可成为又一种新的环保型膜电极用于重金属离子的测定。
|
| 关 键 词： | 同位镀锑膜 方波溶出伏安法 锡 镉 |
In-situ plating antimony film electrode for simultaneous determination of tin and cadmium by square wave stripping voltammetry |
| |
| DING Ya-ping,JIANG Xian-chen,YANG Yong,MU Jing-nan,ZHANG Yu-xue,DU Xiao-yan,LI Qian. In-situ plating antimony film electrode for simultaneous determination of tin and cadmium by square wave stripping voltammetry[J]. Chinses Journal of Health Laboratory Technology, 2011, 0(9) |
| |
| Authors: | DING Ya-ping JIANG Xian-chen YANG Yong MU Jing-nan ZHANG Yu-xue DU Xiao-yan LI Qian |
| |
| Affiliation: | DING Ya-ping1,JIANG Xian-chen1,YANG Yong1,MU Jing-nan1,ZHANG Yu-xue1,DU Xiao-yan1,LI Qian2 (1.Public Health College,Harbin Medical University,Harbin 150081,China,2.Central Hospital of Liaoyuan in Jilin,Liaoyuan 136200,China) |
| |
| Abstract: | Objective: To establish a method for simultaneous determination of Sn2+ and Cd2+ with an unique film electrode.Methods: The analytes were accumulated by in-situ plating antimony film on carbon electrodes and simultaneous determination of Sn2+ and Cd2+ with the antimony film electrodes by square wave stripping voltammetry was conducted in the presence of cetyltrimethylammonium bromide(CTAB).The experimental parameters,such as the composition and concentration of supporting electrolyte,CTAB concentration,scan... |
| |
| Keywords: | Antimony film electrode Square wave stripping voltammetry Tin Cadmium |
| 本文献已被 CNKI 等数据库收录！ |
|
