利用示波极谱图上切口的出现或消失来指示滴定终点的示波极谱滴定法具有终点直观、操作简便和抗干扰能力强等优点。但该法要求试剂(滴定剂、被滴物或指示剂)能在示波极谱图上产生敏锐切口才能应用。本文提出的滴定方法既保留了示波极谱滴定法的优点,又不要求试剂在极谱图上具有敏锐的切口甚至不需极谱图,仅利用终点附近电极 Oscillographic polarographic titration, which uses the appearance or disappearance of the incision on the oscillographic polarographic chart to indicate the end point of the titration, has the advantages of intuitive endpoint, easy operation and strong anti-interference ability. However, the law requires that reagents (titrants, drops or indicators) produce a sharp incision in the oscilloscope polarographic graph for use. The titration method proposed in this paper not only retains the advantages of oscillopolarography titration but also does not require the reagent to have a sharp incision on the polarogram or even does not need polarography.