| 铋膜电极方波溶出伏安法测定痕量Pb Cd |
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| 引用本文： | 公维磊,王长芹,杨金玲,张雪文,辛化雷. 铋膜电极方波溶出伏安法测定痕量Pb Cd[J]. 济宁医学院学报, 2011, 34(1): 40-43. DOI: 10.3969/j.issn.1000-9760.2011.01.016 |
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| 作者姓名： | 公维磊 王长芹 杨金玲 张雪文 辛化雷 |
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| 作者单位： | 1. 济宁医学院医学检验学系,山东,济宁,272067
2. 济宁医学院公共卫生学院 |
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| 基金项目： | 济宁医学院2008年青年科学基金资助项目 |
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| 摘 要： | 目的 考察并优化同位镀铋膜测定Pb、Cd的条件.方法 采用方波溶出伏安法,以铋膜电极作为电极测定食品中微量Pb、Cd.结果 Pb、Cd在铋膜电极上可得到灵敏的溶出峰,Pb、Cd的溶出电位分别为0.50V和0.77V.当电沉积时间为180s时,Pb、Cd的检出限分别达1.10μg/L 和 2.0μg/L,RSD分别为3....
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| 关 键 词： | 铋膜电极 方波溶出伏安法 铅 镉 |
In-situ plating bismuth film on glass carbon electrode for the determination of lead and cadmium by square wave stripping voltammetry |
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| GONG Wei-lei,WANG Chang-qin,YANG Jin-ling,et al. In-situ plating bismuth film on glass carbon electrode for the determination of lead and cadmium by square wave stripping voltammetry[J]. Jounal of Jinning Medical College, 2011, 34(1): 40-43. DOI: 10.3969/j.issn.1000-9760.2011.01.016 |
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| Authors: | GONG Wei-lei WANG Chang-qin YANG Jin-ling et al |
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| Affiliation: | GONG Wei-lei,WANG Chang-qin,YANG Jin-ling,et al(Medical Laboratory Department,Jining Medical University,Jining 272067,China) |
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| Abstract: | Objective The experiment conditions of the determination of lead and cadmium by bismuth film-plated electrode were investigated and optimized.Methods Bismuth film-plated glass-carbon electrode was prepared by in-situ plating for the determination of trace lead in food by square wave stripping voltammentry.Results Sensitive stripping peak of lead and cadmium was obtained at the potential of-0.50V and-0.77V.Following a 180 s preconcentration,the oxidation peak currents changed linearly with the concentration ... |
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| Keywords: | Bismuth film-plated electrode Square wave stripping voltammetry Lead Cadmium |
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