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微分脉冲阴极溶出伏安法测定废水中痕量的氰化物 被引量:2

Determination of Trace Cyanide In Wastwater By Differential Pulse Cathodic Stripping Voltammetry
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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. 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.
出处 《环境科学与技术》 CAS CSCD 北大核心 1989年第3期13-16,22,共5页 Environmental Science & Technology
关键词 溶出伏安法 氰化物 废水 Stripping Voltammetry Cyanide
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参考文献1

  • 1彭图治,吕荣山.阴极溶出伏安法测定氰化物的研究[J]化学学报,1982(07).

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