| 新型量子点修饰金电极的制备及其在检测多巴胺中的应用 |
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| 引用本文： | 寇文杰,王晶晶,艾永青,吕鉴泉.新型量子点修饰金电极的制备及其在检测多巴胺中的应用[J].湖北师范学院学报(自然科学版),2011,31(3):16-20,30. |
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| 作者姓名： | 寇文杰 王晶晶 艾永青 吕鉴泉 |
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| 作者单位： | 1. 黄石市中心血站
2. 湖北师范学院化学与环境工程学院,污染物分析与资源化技术湖北省重点实验室,湖北黄石435002 |
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| 基金项目： | 湖北省自然科学基金项目(2010CDA061); 湖北省教育厅创新团队项目和重点项目(D200922005)资助 |
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| 摘 要： | 用3-巯基丙酸(MPA)包覆的碲化镉量子点(CdTe QDs)在金电极上进行自组装,制备了CdTe QDs修饰金电极(CdTe QDs/Au E)。利用循环伏安法研究此修饰电极的电化学行为,以Fe(CN)6]3-/4-为探针,考察了CdTe QDs自组装膜修饰金电极的电化学性质。而且研究了多巴胺(DA)在此电极上的电化学行为,结果表明:DA在此修饰电极上可被电催化氧化。差分脉冲伏安(DPV)氧化峰电流与DA浓度在1.00×10-9～6.40×10-5mol/L范围内呈线性关系,检出限为3.30×10-10mol/L.
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| 关 键 词： | 金电极 量子点 多巴胺 化学修饰电极 |
Preparation of novel CdTe QDs modified gold electrode and application in electrochemical determination of dopamine |
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| KOU Wen-jie,WANG Jing-jing,AI Yong-qing,LU Jian-quan.Preparation of novel CdTe QDs modified gold electrode and application in electrochemical determination of dopamine[J].Journal of Hubei Normal University(Natural Science),2011,31(3):16-20,30. |
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| Authors: | KOU Wen-jie WANG Jing-jing AI Yong-qing LU Jian-quan |
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| Institution: | KOU Wen-jie1,WANG Jing-jing2,AI Yong-qing2,LU Jian-quan2(1.Huangshi Blood Center,Huangshi 435002,China,2.Hubei Key Laboratory of Pollutant Analysis & Reuse Technology,College of Chemistry and Environmental Engineering,Hubei Normal University,China) |
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| Abstract: | 3-mercaptopropionic acid(3-MPA) capped cadmium tellurium quantum dots(CdTe QDs) self-assembled monolayer modified electrode(CdTe QDs /Au E) was prepared and its electrochemical behavior was studied by cyclic voltammetry.The results showed that a self-assembled monolayer(SAM) was formed on the surface of gold electrode.Fe(CN)6]3-/4-redox couple was used as the electrochemical probe to study the electrochemical characteristics of SAM modified gold electrode.The electrochemical behaviors of dopamine(DA) were ... |
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| Keywords: | gold electrode quantum dots dopamine chemically modified electrode |
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