Electrocatalytic oxidation of NADH at glassy carbon electrodes modified with an electropolymerized film of nile blue A  

作　　者：蔡称心 薛宽宏 

机构地区：[1]Department of Chemistry, Nanjing Normal University, Nanjing, Jiangsu 210097, China

出　　处：《Chinese Journal of Chemistry》2000年第2期182-187,共6页中国化学（英文版）

基　　金：Project supported by the Naural Science Foundation of the Education Commission of Jiangsu Province.

摘　　要：The kinetic parameters for the etectrocatalytic oxidation of dihydronicotiamide adenine dinucleotide (NADH) at glassy carbon electrodes modified with an electropolymerized film of nile blue A (PNB) have been determined based on rotating disk electrode measurements. The rate constant for the chemical reaction between NADH and PNB is strongly influenced by NADH concentration and the pH value of solution, and it decreases with increasing NADH concentration, indicating that the electrocatalytic process proceeds via the formation of an intermediate of charge-transfer complex between NADH and PNB.The kinetic parameters for the etectrocatalytic oxidation of dihydronicotiamide adenine dinucleotide (NADH) at glassy carbon electrodes modified with an electropolymerized film of nile blue A (PNB) have been determined based on rotating disk electrode measurements. The rate constant for the chemical reaction between NADH and PNB is strongly influenced by NADH concentration and the pH value of solution, and it decreases with increasing NADH concentration, indicating that the electrocatalytic process proceeds via the formation of an intermediate of charge-transfer complex between NADH and PNB.

关 键 词：ELECTROCATALYSIS modified electrode MEDIATOR NADH nile blue A 

分 类 号：O643.3[理学—物理化学]