Electrocatalytic oxidation and the mechanism of dopamine on a MWNT-modified glassy carbon electrode |
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| Authors: | Dao-Jun Guo Ming Jin |
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| Affiliation: | 1. School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
2. School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong, 273165, PR China
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| Abstract: | The electrochemical behavior of dopamine (DA) at a MWNTs-modified glassy carbon electrode was investigated by cyclic voltammetry (CV), square wave voltammetry (SWV). The MWNTs modified electrode exhibited marked promotion of the electrochemical reaction of DA in different environments. Under optimum conditions, the peak currents of SWV of DA were increased linearly with incremental concentration of DA in the range from 5 × 10?7 to 1 × 10?5 mol L?1. The limit of detection is 3 × 10?7 mol L?1. |
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