期刊
CHINESE JOURNAL OF CATALYSIS
卷 34, 期 6, 页码 1208-1215出版社
SCIENCE PRESS
DOI: 10.1016/S1872-2067(12)60586-5
关键词
Nonenzymatic detection; Copper oxide; Multiwalled carbon nanotube; Modified glassy carbon electrode; Glucose; Fructose; Simultaneous determination
资金
- Iranian Nanotechnology Initiative
- Research Council of Isfahan University of Technology
- Centre of Excellence in Sensor and Green Chemistry
A nonenzymatic electrochemical sensor for glucose and fructose was fabricated that contained a glassy carbon electrode modified with a copper oxide (CuO)/multiwalled carbon nanotube (MWCNT) nanocomposite. The electrochemical properties of the CuO/MWCNT-modified glassy carbon electrode were investigated. Two distinguishable anodic peaks were observed around 0.30 and 0.44 V corresponding to the oxidation of glucose and fructose, respectively, at the surface of the modified electrode. The detection limits for glucose and fructose were both 0.04 mmol/L. The sensor was used to simultaneously determine the concentrations of glucose and fructose in hydrolyzed sucrose samples, and to measure glucose in blood serum samples, demonstrating its potential as a nonenzymatic carbohydrate sensor. (c) 2013, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
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