| 抗坏血酸存在下六氮杂铜配合物修饰金电极对多巴胺的分析测定 |
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| 引用本文： | 吴海霞,董树清,康敬万,冯文成,杨西萍,高兰玲.抗坏血酸存在下六氮杂铜配合物修饰金电极对多巴胺的分析测定[J].兰州石化职业技术学院学报,2009,9(2):1-5. |
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| 作者姓名： | 吴海霞 董树清 康敬万 冯文成 杨西萍 高兰玲 |
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| 作者单位： | 1. 兰州石化职业技术学院,石油化学工程系,甘肃,兰州,730060
2. 西北师范大学,化学化工学院,甘肃,兰州,730070 |
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| 基金项目： | 甘肃省教育厅基金，石化职业技术学院科教基金 |
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| 摘 要： | 利用自组装的方法制备了一种新型六氮杂铜配合物修饰的金电极。采用循环伏安法和电化学隧道扫描显微镜对该电极进行了表征。计算了该电极电子转移系数为0.42,标准速率常数为38S^-1。该电极可以有效地催化氧化多巴胺,当抗坏血酸浓度为1-5mmol/L时,可用于多巴胺的分析测定,检测限低至1.8×10^-8mol/L。
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| 关 键 词： | 六氮杂铜修饰金电极 多巴胺分析测定 |
Determination of dopamine in the presence of ascorbic acid using hexaaza copper(II) complex modified electrode |
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| WU Hai-xia,DONG Shu-qing,KANG Jing-wan,FENG Wen-cheng,YANG Xi-ping,GAO Lan-ling.Determination of dopamine in the presence of ascorbic acid using hexaaza copper(II) complex modified electrode[J].Journal of Lanzhou Petrochemical Vocational College of Technology,2009,9(2):1-5. |
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| Authors: | WU Hai-xia DONG Shu-qing KANG Jing-wan FENG Wen-cheng YANG Xi-ping GAO Lan-ling |
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| Institution: | 1.Department of Petrochemical Engineering;Lanzhou Petrochemical College of Vocational Technology;Lanzhou 730060;China;2.College of Chemistry;Northwest Normal University;Lanzhou 730070;China |
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| Abstract: | The hexaaza macrocyclic copper(II) complex modified gold electrode(Cu(II)L-TCA/Au) was prepared.Cyclic voltammetry(CV) and Scanning electrochemical microscopy(SECM) were used to determine the electrochemical properties of the film.The modified electrode was an effective mediator for the electrocatalytic oxidation of the dopamine and the modification allowed dopamine to be determined in the presence of ascorbic acid in the range from 1 to 5mmol/L in pH 7.6 Tris-HCl buffer solution.The detection limit(S/N=3) ... |
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| Keywords: | Cu(II)L-TCA/Au modified gold electrode Dopamine determination |
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