The coadsorption characteristics of para-toluene sulfamide and 1,4-butynediol atmercury electrode have been studied by means of electrocapillary curve,differential capacity curve,Stuart model and the SCFMO method(CNDO/2).

• 用电毛细曲线、微分电容曲线、Stuart模型和自洽场分子轨道法（CNDO/2）研究对甲苯磺酰胺和1.；4－丁炔二醇在汞电极上的共吸附特性。