用椭园偏振光测量法(即椭园法—Ellipsometry)对碱性溶液中铁表面膜的形成进行了研究。根据铁表面膜在电解质溶液中进行氧化还原循环时测得的光学参量与电化学参量及其变化规律,讨论了铁表而膜的形成、溶解、转变等现象,以及氧化还原过程中可溶性中间产物的存在等问题。结果表明:光学方法提供的信息有助于解决仅用电化学方法所不能观测和解释的现象和问题,它将在电化学反应研究中成为一种十分有用的工具。 The formation of iron surface film in alkaline solution was investigated by ellipsometry (ellipse method - ellipsometry). According to the optical parameters and electrochemical parameters measured during the redox cycling of the iron surface membrane in the electrolyte solution and its variation, the formation, dissolution and transformation of the iron film were discussed, and the soluble intermediate products The existence of other issues. The results show that the information provided by the optical method can help to solve the phenomena and problems that can not be observed and explained by electrochemical methods. It will become a very useful tool in the electrochemical reaction research.