Cyclic Voltammetry Determination of Epinephrine with a Nano-gold Modified Glassy Carbon Electrode in the Presence of High Concentration Ascorbic Acid  

作　　者：HongZHANG XueQinGUI 等 

机构地区：[1]SchoolofChemistryandChemicalEngineering,AnhuiUniversity,Hefei230039 [2]TheCenterofModernExperimentandTechnology,AnhuiUniversity,Hefei230039

出　　处：《Chinese Chemical Letters》2002年第2期153-156,共4页中国化学快报（英文版）

基　　金：The authors gratefully acknowledge financial support from the Natural Science Foundation of Anhui Province and the Natural Science Foundation of Anhui Education Committee.

摘　　要：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.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.

关 键 词：NANO-GOLD glassy carbon electrode EPINEPHRINE ascorbic acid cyclic voltammetry. 

分 类 号：Q577[生物学—生物化学] O657.1[理学—分析化学]