Solar graphene modified glassy carbon electrode for the voltammetric resolution and detection of dopamine, ascorbic acid and uric acid

被引：23

作者：

Nancy, T. E. Mary ^{[1
]}

Anithakumary, V. ^{[1
]}

Swamy, B. E. Kumara ^{[2
]}

机构：

[1] Sree Narayana Coll Women, Post Grad Dept Chem, Kollam 691001, Kerala, India

[2] Kuvempu Univ, Dept AG Studies & Res Ind Chem, Shimoga 577451, Karnataka S, India

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2014年 / 720卷

关键词：

Solar graphene; Dopamine; Ascorbic acid; Uric acid; Cyclic voltammetry; Differential pulse voltammetry; PLANE PYROLYTIC-GRAPHITE; PASTE ELECTRODE; ELECTROCHEMICAL DETECTION; SELECTIVE DETERMINATION; OXIDATION; OXIDE; NANOPARTICLES; NANOTUBES; SEROTONIN; SITES;

D O I：

10.1016/j.jelechem.2014.03.015

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Graphene was synthesized by solar exfoliation method. A glassy carbon electrode (GCE) modified with solar graphene (sG), was used for resolving the voltammetric signals of ascorbic acid (AA), dopamine (DA) and uric acid (UA). The excellent resolution of the signals was due to the presence of edge planes and oxygenated defects in sG; which were confirmed by Raman and Fourier transform infrared (FUR) spectra. This enabled the simultaneous detection of AA, DA and UA in 0.1 M phosphate buffer solution at the physiological pH. The sensor exhibited good stability, sensitivity and selectivity towards the analysis of the three components in their mixtures. Selective detection of DA using sG/GCE is also presented. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：107 / 114

页数：8

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