| Cyclic Voltammetry Determination of Epinephrine with a Nano—gold Modified Glassy Carbon Electrode in the Presence of High Concentration Ascorbic Acid |
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| 作者姓名： | Hong ZHANG Xue Qin GUI Yang XU Bao Kang JIN* School of Chemistry and Chemical Engineering Anhui University Hefei |
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| 作者单位： | Hong ZHANG1，2，Xue Qin GUI3，Yang XU1，Bao Kang JIN1* 1School of Chemistry and Chemical Engineering，Anhui University，Hefei 230039 2Department of Chemistry，Fuyang Teachers College，Fuyang 236032 3The Center of Modern Experiment and Technology，Anhui Un |
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| 基金项目： | The authors gratefully acknowledge financial support from the Natural Science Foundation of Anhui Province and the Natural Science Foundation of Anhui Education Committee. |
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| 摘 要： | As we know, there are usually some problems in electrochemical analysis with bare electrode to detect neurotransmitters. One is low electron transfer rate and the other is interfering compounds, such as ascorbic acid. So some kinds of modified electrodes have been successfully employed to promote the efficiency of electrochemical analysis1-4, such as Nafion modified electrode5,6 and SAM modified electrode7. They can attract positively-charged neurotransmitters while repulse negatively-cha…
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| 关 键 词： | 循环伏安法 肾上腺素 纳米金修改玻璃状碳电极 高浓度抗坏血病维生素 |
Cyclic Voltammetry Determination of Epinephrine with a Nano-gold Modified Glassy Carbon Electrode in the Presence of High Concentration Ascorbic Acid |
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| Hong ZHANG,,Xue Qin GUI,Yang XU,Bao Kang JIN* School of Chemistry and Chemical Engineering,Anhui University,Hefei .Cyclic Voltammetry Determination of Epinephrine with a Nano-gold Modified Glassy Carbon Electrode in the Presence of High Concentration Ascorbic Acid[J].Chinese Chemical Letters,2002,13(2):153-156. |
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| Authors: | Hong ZHANG Xue Qin GUI Yang XU Bao Kang JIN |
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| Abstract: | Nano-gold (NG) modified glassy carbon electrodes (GCEs) were used for determination of epinephrine (EP) in the presence of high concentration ascorbic acid (AA) by cyclic voltammetry (CV). This modified electrode can not only catalytically oxidize EP and AA, but also separate the catalytic peak potentials of EP and AA by about 183.5 mV. In pH = 7.0 ogisogate byffer solution, the linear range of epinephrine was 5 106 ~ 1 ?10-4 mol/L. |
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| Keywords: | Nano-gold glassy carbon electrode epinephrine ascorbic acid cyclic voltammetry |
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