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| 羧基化石墨烯修饰玻碳电极对多巴胺电催化性能影响的研究 | |
| 引用本文： | 同元辉,郭宪厚,焦翠玲,王学亮,郁章玉.羧基化石墨烯修饰玻碳电极对多巴胺电催化性能影响的研究[J].菏泽学院学报,2012,34(2):56-59,75. |
| 作者姓名： | 同元辉 郭宪厚 焦翠玲 王学亮 郁章玉 |
| 作者单位： | 1. 曲阜师范大学化学与化工学院,山东曲阜,273165 2. 菏泽学院,山东菏泽,274015 3. 曲阜师范大学化学与化工学院,山东曲阜273165／菏泽学院,山东菏泽274015 |
| 基金项目： | 基金项目:山东省自然科学基金资助项目 |
| 摘 要： | 在玻碳电极表面修饰上羧基化石墨烯制得羧基化石墨烯修饰电极，以此电极为工作电极，研究了多巴胺在此电极上的电化学行为．在pH=3．0的Na：HPO4-C6H8O7，缓冲溶液中，氧化峰电流与多巴胺浓度在1．4×10^-3-1．8×10^-4moL／L的范围内呈良好的线性关系，检出限为5．0×10^-6mol／L．实验结果表明，玻碳电极经羧基化石墨烯修饰后对多巴胺具有明显的电催化作用，灵敏度明显提高． |
| 关 键 词： | 羧基化石墨烯 玻碳电极 多巴胺 电催化性能 |
Voltammetric Determination of Dopamine with Carbonylated Graphene Modified Glassy Carbon Electrode |
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| TONG Yuan-hui,GUO Xian-hou,JIAO Cui-ling,WANG Xue-liang,YU Zhang-yu.Voltammetric Determination of Dopamine with Carbonylated Graphene Modified Glassy Carbon Electrode[J].Journal of Heze University,2012,34(2):56-59,75. | |
| Authors: | TONG Yuan-hui GUO Xian-hou JIAO Cui-ling WANG Xue-liang YU Zhang-yu |
| Institution: | 1,2(1.College of Chemistry and Chemical Engineering,Qufu Normal University,Qufu Shandong 9273165,China; 2.Heze University,Heze Shandong 274015,China) |
| Abstract: | Carbonylated graphene was used to modify glassy carbon electrode surface to prepare carbonylated graphene modified glassy carbon electrode,and the electrochemical behaviors of dopamine were studied on this modified electrode.The experimental parameters such as the supporting electrolyte,buffer pH,the accumulation potential and time,were optimized in detailed.The results showed that the oxidation peak currents varied linearly with the concentration of DA in the range from1.4×10-3 mol/L to 1.8×10-4mol/L and the detection limit was 5.0×10-6mol/L,in pH=3.0 phosphate buffer solution. |
| Keywords: | carbonylated graphene glassy carbon electrode dopamine electro - catalytic performance |
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