聚茜素红-多壁碳纳米管复合膜修饰电极的研制及叶酸含量测定

doi:10.13208/j.electrochem.131105

电化学（中英文） ›› 2014, Vol. 20 ›› Issue (5): 482-485. doi: 10.13208/j.electrochem.131105

聚茜素红-多壁碳纳米管复合膜修饰电极的研制及叶酸含量测定

杜学萍，娄童芳，董莹，屈建莹^*

河南大学化学化工学院环境与分析科学研究所，河南开封 475004

收稿日期:2013-11-05 修回日期:2014-01-03 出版日期:2014-10-28 发布日期:2014-01-08
通讯作者: 屈建莹 E-mail:qujy@henu.edu.cn
基金资助:
河南省教育厅科学技术研究重点计划项目（No.13A150077）资助

Determination of Folic Acid by Composite Film Electrode Modified with Poly-Alizarin Red and Multi-walled Carbon Nanotubes

DU Xue-ping, LOU Tong-fang, DONG Ying, QU Jian-ying^*

Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, China

Received:2013-11-05 Revised:2014-01-03 Published:2014-10-28 Online:2014-01-08
Contact: QU Jian-ying E-mail:qujy@henu.edu.cn

摘要/Abstract

摘要： 采用电聚合方法将茜素红（AR）非共价修饰到多壁碳纳米管（MWCNTs）上，制得了PAR/MWCNTs/GC电极，该电极对叶酸（FA）具有良好的电催化作用. 结果表明，在最佳实验条件下，在-0.63 V处叶酸还原峰电流与浓度（1.25×10^-6 ~ 4.00×10^-5 mol·L^-1）呈现良好线性关系，相关系数0.9985. 用标准加入法检测了回收率，其值达92.0% ~ 102.0%. 该电极制作简单，有良好的稳定性．

关键词: 叶酸, 多壁碳纳米管, 茜素红

Abstract: The novel modified electrode was fabricated by electropolymerizing alizarin red onto the surface of multi-walled carbon nanotubes on glassy carbon electrode surface, which exhibited good electrocatalytic activity for folic acid. The experimental results showed that the reduction peak current of folic acid at -0.63 V was linear to its concentration over the range of 1.25×10^-6 ~ 4.00×10^-5 mol·L^-1 in the optimized experimental conditions (R = 0.9985). Test for recovery was carried out by standard addition method, and the recovery ratios were in the range of 92.0% ~ 102.0%. The modified electrode was prepared simply with excellent stability, which provides a new feasible method for determination of folic acid.

Key words: poly-alizarin red, multi-walled carbon nanotubes, folic acid

中图分类号:

O646

杜学萍，娄童芳，董莹，屈建莹*. 聚茜素红-多壁碳纳米管复合膜修饰电极的研制及叶酸含量测定[J]. 电化学（中英文）, 2014, 20(5): 482-485.

DU Xue-ping, LOU Tong-fang, DONG Ying, QU Jian-ying*. Determination of Folic Acid by Composite Film Electrode Modified with Poly-Alizarin Red and Multi-walled Carbon Nanotubes[J]. Journal of Electrochemistry, 2014, 20(5): 482-485.

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链接本文: https://electrochem.xmu.edu.cn/CN/10.13208/j.electrochem.131105

https://electrochem.xmu.edu.cn/CN/Y2014/V20/I5/482

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聚茜素红-多壁碳纳米管复合膜修饰电极的研制及叶酸含量测定

Determination of Folic Acid by Composite Film Electrode Modified with Poly-Alizarin Red and Multi-walled Carbon Nanotubes

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