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Simultaneous Determination of Dopamine and Uric Acid on Poly-(MA)-ERGO Modified Glassy Carbon Electrode |
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DOI: |
KeyWord:Poly-(melamine) graphene uric acid dopamine ascorbic acid |
Author | Institution |
LIU Ran-tong,SONG Shi-wen,HU Kai,ZHANG Teng,YU Zi-ting,HE Guo-miao |
延安大学石油工程与环境工程学院 |
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Abstract: |
A poly-(MA)-ERGO hybrid film modified electrode was fabricated by using cyclic voltammommetry.The electrochemical behaviors of dopamine(DA),uric-acid(UA)and ascorbic acid(AA)were investigated,respectively.The results showed that the modified electrode exhibited an excellent electrocatalytic activity toward the electrooxidation of DA and UA,and had a superior selectivity in the determination of DA,UA in the presence of AA.Under the optimum conditions,the calibration curves for DA and UA were linear in the range of 1.0×10-8-5.0×10-6 mol?L-1 with the detection limit(3sb)of 5.0×10-9 mol?L-1. |
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