本文采用多种电化学方法研究了ＴＳＡＢ的电分析特性，探讨了还原峰电位、峰电流与ＰＨ值的关系，求得了该化合物的电极反应的电子转移数及扩散系数，研究了其在滴汞电极上的吸附性质、扫描速度对峰电位峰电流的影响，提出了不同酸度下的电极反应机理． In this paper, the electrochemical characteristics of TSAB were studied by electrochemical methods. The relationship between the reduction peak potential, the peak current and the pH value was discussed. The electron transfer number and diffusion coefficient of the electrode reaction were obtained. The adsorption properties of the electrode and the effect of scanning speed on the peak current at the peak potential were discussed. The electrode reaction mechanism under different acidities was proposed.