Electrocatalytic Oxidation of Vitamin B6 by 4-Hydroxy- 2,2,6,6-tetramethylpiperidine-N-oxyl  

作　　者：李燕 文小林 刘中立 

机构地区：[1]National Laboratory of Applied Organic Chemistry, Lanzhou University [2]Department of Management, Zhejiang Pharmaceutical College, Ningbo, Zhejiang 315100, China

出　　处：《Chinese Journal of Chemistry》2004年第11期1356-1358,共3页中国化学（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Nos. 20172025 and 20332020).

摘　　要：The electrochemistry of pyridoxine (vitamin B6, VB6) was studied by cyclic voltammetry at a glassy carbon electrode. The electrochemical response of VB6 could be significantly enhanced by using 4-hydroxy-2,2,6,6-tetra- methylpiperidine-N-oxyl (HO-TEMPO) as a mediator via an electrocatalytic EC' mechanism with the oxoammo-nium ion of HO-TEMPO as the active oxidant. The catalytic rate constant was determined to be 5.4×103 (mol L-1)-1s-1 by using chronoamperometry.The electrochemistry of pyridoxine (vitamin B6, VB6) was studied by cyclic voltammetry at a glassy carbon electrode. The electrochemical response of VB6 could be significantly enhanced by using 4-hydroxy-2,2,6,6-tetra- methylpiperidine-N-oxyl (HO-TEMPO) as a mediator via an electrocatalytic EC' mechanism with the oxoammo-nium ion of HO-TEMPO as the active oxidant. The catalytic rate constant was determined to be 5.4×103 (mol L-1)-1s-1 by using chronoamperometry.

关 键 词：cyclic voltammetry catalytic electrooxidation vitamin B6 NITROXIDE 

分 类 号：O621[理学—有机化学]