Rapid nonenzymatic monitoring of glucose and fructose using a CuO/multiwalled carbon nanotube nanocomposite-modified glassy carbon electrode

详细信息    查看全文

• 作者：Hajar SHEKARCHIZADEH ; Mahdi KADIVAR ; Ali A. ENSAFI
• 关键词：Nonenzymatic detection ; Copper oxide ; Multiwalled carbon nanotube ; Modified glassy carbon electrode ; Glucose ; Fructose ; Simultaneous determination
• 刊名：Chinese Journal of Catalysis
• 出版年：2013
• 出版时间：June, 2013
• 年：2013
• 卷：34
• 期：6
• 页码：1208-1215
• 全文大小：591 K

文摘

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.