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毛细管电泳-化学发光法检测废水中的铜离子 被引量:7

Detection of Cu(Ⅱ) in Waste Water by Capillary Electrophoresis with Chemiluminescence
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摘要 于铜离子对鲁米诺-铁氰化钾体系有催化化学发光反应的特性,采用毛细管电泳-化学发光法成功实现了对Cu(Ⅱ)的分离检测,并对化学发光条件和电泳条件进行了优化。在优化条件下,Cu(Ⅱ)的检出限(S/N=3)为7.5×10-9mol.L-1,线性范围为7.5×10-8-5.0×10-5mol.L-1,迁移时间和峰高的相对标准偏差(n=5)分别为2.9%、4.7%。 Based on the fact that Cu^2+ can catalyze the chemiluminescence (CL) reaction of Luminol with potassium ferricyanide, a novel capillary electrophoresis with CL method was developed for the determination of Cu(Ⅱ ). Under the optimum conditions, the detection limit (S/N=3) for Cu( Ⅱ ) was 7.5×10^-9 mol · L^-1 , with the linear range of 7.5 ×10^-8 ~5.0 ×10^-5 mol · L^-1. The RSDs (n=5) for migration time and peak height were 2.9 % and 4.7 %, respectively.
出处 《化学与生物工程》 CAS 2007年第2期69-72,共4页 Chemistry & Bioengineering
基金 国家自然科学基金资助项目(20005005)
关键词 毛细管电泳 化学发光 Cu(Ⅱ) capillary electrophoresis chemiluminescence Cu( Ⅱ )
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参考文献12

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