用循环伏安法及现场红外光谱电化学法研究了维生素Ｋ３在铂电极上，弱碱性水溶液介质中的电化学反应机理。循环伏安法实验结果显示ＶＫ３的电化学反应为两步１电子准可逆电极过程，现场光谱电化学实验结果则从基团特征吸收频率的变化表明了ＶＫ３的电化学还原和氧化经历了从萘醌到萘酚的互变过程。据此进一步证实了ＶＫ３由萘醌到萘酚的电化学反应机理 The electrochemical reaction mechanism of vitamin K3 on platinum electrode and weak alkaline aqueous medium was studied by cyclic voltammetry and field infrared spectroscopy. The results of cyclic voltammetry showed that the electrochemical reaction of VK3 was a two-step 1 quasi-reversible electrode process. The results of field-based electrochemical experiments showed that the electrochemical reduction and oxidation of VK3 underwent a series of reactions from naphthalene Quinones to naphthol interconversion process. This further confirms the electrochemical reaction mechanism of VK3 from naphthoquinone to naphthol