碳纳米管和聚电解质修饰玻碳电极的电化学行为及对芦丁的检测

doi:10.61558/2993-074X.2841

电化学（中英文） ›› 2011, Vol. 17 ›› Issue (3): 283-287. doi: 10.61558/2993-074X.2841

• 化学-生物传感技术近期研究专辑（上海师范大学章宗穰教授主编） • 上一篇下一篇

碳纳米管和聚电解质修饰玻碳电极的电化学行为及对芦丁的检测

华亮，吴霞琴*，王荣

上海师范大学化学系，上海 200234

收稿日期:2011-06-07 修回日期:2011-07-11 出版日期:2011-08-28 发布日期:2011-07-25
通讯作者: 吴霞琴 E-mail:xqwu@shnu.edu.cn
基金资助:
国家自然科学基金（20973114）

Study on the Electrochemical Behaviors of GC Electrode Modified with Carbon Nanotube-Polyelectrolytes and its Application for Rutin Detection

HUA Liang, WU Xia-Qin*, WANG Rong

Chemistry Department, Shanghai Normal University, Shanghai 200234, China

Received:2011-06-07 Revised:2011-07-11 Published:2011-08-28 Online:2011-07-25
Contact: WU Xia-Qin E-mail:xqwu@shnu.edu.cn

摘要/Abstract

摘要： 研究了芦丁和抗坏血酸在碳纳米管与聚电解质复合材料修饰电极（PDDA/SWCNTs/GC）上的电化学行为。循环伏安测量结果表明，芦丁在此修饰电极上的电子传递反应是受吸附控制的。在碳纳米管和PDDA的共同作用下，芦丁和抗坏血酸的氧化峰电位分离大于200 mV。利用微分脉冲伏安法测定了不同浓度芦丁的电流响应，线性范围为2.5～110 mol?L-1, 检出限为0.5 mol?L-1。即使抗坏血酸浓度较高时，氧化峰电流与芦丁的浓度仍然呈良好的线性关系。此修饰电极制作简便，可应用于药物中芦丁含量的直接检测。

关键词: 芦丁, 抗坏血酸, 聚电解质, 碳纳米管, 修饰电极

Abstract: The electrochemical behaviors of rutin and ascorbic acid at single-wall carbon nanotube and polyelectrolytes (dimethyl-diallylammonium chloride, PDDA) film modified glassy carbon electrode was investigated. The cyclic voltammetric results showed that electron transfer of rutin at PDDA/SWCNTs/GC modified electrode is an adsorption-controlled process. The separation of oxidation peak potentials of rutin and ascorbic acid was more than 200 mV. The rutin concentration in the presence of AA were detected by differential pulse voltammetry (DPV). The experimental results indicated that the PDDA/SWCNTs/GC modified electrode can be used for the detection of rutin in the presence of high concentration of AA. The DPV results showed that the oxidation peak current of rutin versus its concentration had a good linearity in the range of 2.5～110 ?mol/L with a correlation coef?cient of 0.9914. The detection limit was 0.5 ?mol/L. The proposed method had been successfully applied to the detection of compound rutin tablets.

Key words: Rutin, ascorbic acid, Polyelectrolytes, carbon nanotubes, modified electrode

中图分类号:

O657.1

华亮, 吴霞琴, 王荣. 碳纳米管和聚电解质修饰玻碳电极的电化学行为及对芦丁的检测[J]. 电化学（中英文）, 2011, 17(3): 283-287.

HUA Liang, WU Xia-Qin, WANG Rong. Study on the Electrochemical Behaviors of GC Electrode Modified with Carbon Nanotube-Polyelectrolytes and its Application for Rutin Detection[J]. Journal of Electrochemistry, 2011, 17(3): 283-287.

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链接本文: https://electrochem.xmu.edu.cn/CN/10.61558/2993-074X.2841

https://electrochem.xmu.edu.cn/CN/Y2011/V17/I3/283

参考文献

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碳纳米管和聚电解质修饰玻碳电极的电化学行为及对芦丁的检测

Study on the Electrochemical Behaviors of GC Electrode Modified with Carbon Nanotube-Polyelectrolytes and its Application for Rutin Detection

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