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采用薄层光谱电化学法，以三电极系统在酸性介质中对联苯胺进行薄层电势电解，同时测定吸收光谱，由Ｎｅｒｎｓｔ方程得到反应过程中的电子转移数ｎ和式极电位Ｅ０。
The thin layer potential electrolysis of benzidine was carried out in a three-electrode system using thin-film spectroscopic electrochemical method. The absorption spectra were also measured. The electron transfer number n and the mode potential E0 were obtained from the Nernst equation.