| 微分脉冲阴极溶出伏安法测定废水中痕量的氰化物 |
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| 引用本文： | 韦进宝,魏玉珍.微分脉冲阴极溶出伏安法测定废水中痕量的氰化物[J].环境科学与技术,1989(3):13-16,22. |
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| 作者姓名： | 韦进宝 魏玉珍 |
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| 作者单位： | 武汉大学环境科学系
(韦进宝)，武汉大学环境科学系(魏玉珍) |
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| 摘 要： | 本文报导了在0.1%的乙二胺介质中,在悬汞电极上可得到一灵敏的微分脉冲阴极溶出峰电流.峰电位约为-0.21伏(相对于Ag—Agcl电极)。CN~-浓度在0.01—9.0ppm范围内,与峰电流有线性关系.其检测限为0.1ppb。不经分离,可直接用于电镀废水和其它水质中痕量氰化物的测定.
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| 关 键 词： | 溶出伏安法 氰化物 |
Determination of Trace Cyanide In Wastwater By Differential Pulse Cathodic Stripping Voltammetry |
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| Wei Jinpao Wei Yuzhen.Determination of Trace Cyanide In Wastwater By Differential Pulse Cathodic Stripping Voltammetry[J].Environmental Science and Technology,1989(3):13-16,22. |
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| Authors: | Wei Jinpao Wei Yuzhen |
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| Institution: | Depart.of Envron. Science Wuhaa University |
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| Abstract: | This paper reports a method for the determination of cyanide ion by differential pulse cathodic stripping voltammetry. A Sensivity peak current can be obtained in the 0.1% ethylenediamine medium. The peak potential is about-0.21v(vs. Ag-Agcl). A linear relationship between the peak current and the concentration of cyanide ion in the range of 0.01-9.0ppm isobserved. The detection limit of cyanide ion is 0.1ppb.The method can be used to determine trace of CN-in wastwater and electroplating wastc. |
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| Keywords: | Stripping Voltammetry Cyanide |
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