凡拉明蓝的电化学氧化机制  

ELECTROCHEMICAL OXIDATION MECHANISM OF VARIAMINE BLUE

作　　者：吴义熔[1] 蔡小萍[1] 汪正浩[1] 

机构地区：[1]北京师范大学化学系,北京100875

出　　处：《北京师范大学学报（自然科学版）》1998年第4期506-509,共4页Journal of Beijing Normal University(Natural Science)

基　　金：国家自然科学基金!29673006

摘　　要：作为可能的光谱电化学定量研究中复杂反应机制的模型物，研究了凡拉明蓝的电化学氧化机制．实验结果表明，在所使用的pH范围内（pH=0～1．68），凡拉明蓝的氧化机制是EC历程．通过研究pkf与pH的线性关系，发现在电极反应过程中，后续化学反应对H+的级数约为1级，并拟定了化学反应历程，对实验结果进行了理论说明．As a possible model for quantitative studies on the mechanism of complex reactions, the oxidation mechanism of variamine blue is discussed. Experimental results show that when pH is equal to 0-1.68, the oxidation mechanism is EC process. It was found that the order of following chemical reaction for H+ was one by observing the linear relationship of pkf,and pH. A reaction mechanism was hypothesized and the theoretical explanation about our experimental results was given.

关 键 词：凡拉明蓝 氧化机制 电化学 循环伏安法 

分 类 号：O646.54[理学—物理化学]