The anodic and cathodic peaks on CVs of the CAW modified electrode in the PBS solution were attributed to the oxidation of alcoholic hydroxyl groups and the reduction of carboxylic acid groups respectively.

• 实验表明，经硝酸处理的碳原子线修饰电极在PBS缓冲溶液中的循环伏安曲线上的一对氧化、还原峰可归属于羟基氧化和羧基还原。