Issue 4, 2012
From the journal:

Dalton Transactions

A novel dinuclear Schiff-base copper(ii) complex modified electrode for ascorbic acid catalytic oxidation and determination†

Zhijun Zhang,a   Xi Li,*ab   Chenggang Wang,c   Chaocan Zhang,*d   Peng Liu,ab   Tingting Fang,a   Yan Xionga  and  Wenjing Xua  

* Corresponding authors

a Department of Chemistry, School of Science, Wuhan University of Technology, Wuhan, PR China

b Institute of High Pressure and Temperature Physics, School of Science, Wuhan University of Technology, Wuhan, PR China

c College of Chemistry, Central China Normal University, Wuhan, PR China

d School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, PR China

Abstract

A new dinuclear copper salicylaldehyde-glycine Schiff-base complex [Cu2(Sal-Gly)2(H2O)2] was synthesized and structurally characterized. [Cu2(Sal-Gly)2(H2O)2] crystallized in the monoclinic system in the P21/c space group. The molecule is a dinuclear complex, formed by two [Cu(Sal-Gly)(H2O)] units. The electropolymerization properties of the copper complex on a glass carbon electrode were studied at different potential ranges. The electropolymerization occurred when the high scan potential reached 1.4 V. The modified electrode exhibited good electrocatalytic oxidation properties to ascorbic acid and showed a sensitivity of 22.9 nA μM−1 (r2 = 0.9998) and detection limit of 0.39 μM (S/N = 3) in the amperometric determination of ascorbic acid. The designed determination method can be used to analyze vitamin C tablets.

Graphical abstract: A novel dinuclear Schiff-base copper(ii) complex modified electrode for ascorbic acid catalytic oxidation and determination

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Supplementary files

Article information

DOI
https://doi.org/10.1039/C1DT11370D
Article type
Paper
Submitted
21 Jul 2011
Accepted
14 Oct 2011
First published
29 Nov 2011

Dalton Trans., 2012,41, 1252-1258

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A novel dinuclear Schiff-base copper(II) complex modified electrode for ascorbic acid catalytic oxidation and determination

Z. Zhang, X. Li, C. Wang, C. Zhang, P. Liu, T. Fang, Y. Xiong and W. Xu, Dalton Trans., 2012, 41, 1252 DOI: 10.1039/C1DT11370D

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