Title: Electro-catalytic Oxidation of Guanine by Glassy Carbon Electrode Modified with Multi-walled Carbon Nanotubes and Room Temperature Ionic Liquid
Abstract: A glassy carbon electrode(GCE) modified with multi-walled carbon nanotubes and room temperature ionic liquid was used for the determination of guanine.In order to investigate the electrocatalytic ability of modified GCE on guanine,the properties of the modified GCE were identified by electrochemical impedance spectroscopy(EIS) and cyclic voltammetry(CV).The results showed that compared with the bare GCE,modified GCE could significantly increase the electrocatalytic ability and oxidation peak currents of guanine.The peak current can increase 7~8times.The linear detection limitation is 1.5×10-6~2×10-4mol/L and the detection limitation is 2×10-7mol/L.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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