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Title of Journal: J Appl Electrochem

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Abbravation: Journal of Applied Electrochemistry

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Kluwer Academic Publishers

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DOI

10.1007/978-3-319-32122-6_7

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1572-8838

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Voltammetric studies of a novel bicopper complex m

Authors: Mingyan Wang Xingyou Xu Jian Gao
Publish Date: 2007/03/07
Volume: 37, Issue: 6, Pages: 705-710
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Abstract

A novel modified glassy carbon electrode GCE with a binuclear copper complex was fabricated using a cyclic voltammetric method in phosphate buffer solution This modified electrode shows very efficient electrocatalytic activity for anodic oxidation of both dopamine DA and ascorbic acid AA via substantial decrease in anodic overpotentials for both compounds Cyclic voltammetry CV and differential pulse voltammetry DPV using this modified electrode show two wellresolved anodic waves for the oxidation of DA and AA in mixed solution which makes it possible for simultaneous determination of both compounds Linear analytical curves were obtained in the ranges 20–1200 μM and 50–1600 μM for DA and AA concentrations by using DPV methods respectively The detection limits were 14 × 10−6 M of DA and 28 × 10−6 M of AA This electrode was used for AA and DA determinations in medicine and foodstuff samples with satisfactory results

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