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电化学(中英文) ›› 2008, Vol. 14 ›› Issue (4): 450-453.  doi: 10.61558/2993-074X.1941

• 研究论文 • 上一篇    下一篇

[LCu]_2biPy/GC电极L-半胱氨酸的伏安测定

王明艳;杨凡;张圣玉;许兴友;杨绪杰;   

  1. 淮海工学院化学工程学院;南京理工大学材料化学实验室;
  • 收稿日期:2008-11-28 修回日期:2008-11-28 出版日期:2008-11-28 发布日期:2008-11-28

Voltammetric Determination of L-Cysteine at Bipyrine Bridged Copper(Ⅱ) Complex Modified Glassy Carbon Electrode

WANG Ming-yan1,2*,YANG Fan1,ZHANG Sheng-yu1,XU Xing-you1,2,YANG Xu-jie2   

  1. (1.School of Chemical Engineering,Huaihai Institute of Technology,Lianyungang 222005,Jiangsu,China;2.Laboratory of Materials Chemistry,Nanjing University of Science and Technology,Nanjing 210094,China
  • Received:2008-11-28 Revised:2008-11-28 Published:2008-11-28 Online:2008-11-28

摘要: [LCu]2b iPy/GC电极对L-半胱氨酸(L-Cys)具有良好的电催化氧化作用,催化电流(Ipa)与L-Cys浓度(C)在1×10-3到300 mmol.L-1范围内呈线性关系,相关系数0.9996,检出下限达5×10-7mol.L-1.

关键词: 双核铜配合物, 修饰电极, L-半胱氨酸, 电催化

Abstract: A modified electrode has been constructed by depositing a novel copper(Ⅱ) complex 2biPy(ClO4)4 on the glassy carbon electrode through the method of cyclic voltammetry(CV).It was found that the modified electrode exhibited high electrocatalytic activity toward L-Cysteine oxidation with good reproducibility and high sensitivity.The peak current of semi-derivative linear scan was proportional to the concentration of L-cys in the range of 1×10-6~3×10-4 mol·L-1.The detection limit was 5×10-7 mol·L-1.

Key words: binuclear copper(Ⅱ) complex, modified electrode, L-cysteine, electrocatalysis

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