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| 溶出伏安法测定乌药中的铜铅镉 | |
| 引用本文： | 梁贺升,陈少瑾,陈宜菲. 溶出伏安法测定乌药中的铜铅镉[J]. 广东微量元素科学, 2011, 18(4): 41-45 |
| 作者姓名： | 梁贺升 陈少瑾 陈宜菲 |
| 作者单位： | 韩山师范学院,环境化学应用技术研究所,广东,潮州,521041 |
| 摘 要： | 在KNO3底液下,用线性扫描阳极溶出伏安法同时测定了乌药样品中铜、铅、镉3种金属的含量.结果表明,在最佳实验条件下,铜、铅、镉的峰电位分别为0.067、-0.45和-0.64V(vs ScE);铜、铅、镉金属离子的质量浓度在0-0.8 mg·L-1范围内,呈现良好的线性关系,相关系数分别为0.991 3、0.990 5... |
| 关 键 词： | 阳极溶出伏安法 乌药 铜 铅 镉 |
Determination of Trace Amount of Copper, Lead and Cadmium in Lindera aggregate by Stripping Voltammetry |
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| LIANG Hesheng,CHEN Shaojin,CHEN Yifei. Determination of Trace Amount of Copper, Lead and Cadmium in Lindera aggregate by Stripping Voltammetry[J]. Trace Elements Science, 2011, 18(4): 41-45 | |
| Authors: | LIANG Hesheng CHEN Shaojin CHEN Yifei |
| Affiliation: | (Research Institute of Environmental Chemistry and Technology Hanshan Normal University,Guangdong Chaozhou 521041,China) |
| Abstract: | A method for the simultaneous determination of trace amount of copper(Ⅱ),lead(Ⅱ)and cadmium(Ⅱ)in lindera aggregata by linear sweep stripping voltammetry was developed.The medium was composed of KNO3 solution.The results showed that the peak potentials of copper,lead,cadmium were found at 0.067,-0.45 and-0.64 V(vs SCE).A good linear relationships were obtained between the peak current and concentration in the range of 0 ~ 0.8 mg·L 1 for copper,lead,cadmium.And the correlation coefficients were 0.991 3,0.990 5 and 0.998 8.The method showed good sensitivity and repeatability,and the method was operated conveniently and quickly. |
| Keywords: | anodic stripping voltammetry Lindera aggregata copper lead cadmium |
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