(1)本文讨论只指示电极电流滴定法(永停法)的理论,推导考虑线路电阻的且能适用於各滴定阶段的一般公式,根据这些公式可以算出不同实验条件下的理论滴定曲线。 (2)定量讨论决定终点附近电流突跃大小的各种因素,为选择永停法的最优实验条件提供一些根据。 (3)提出测定扩散电流常数的简便方法。 (1) This article discusses the theory of electrode current titration (permanent stop) only, derives general formulas that take into account line resistance and can be applied to each titration stage, from which theoretical titration curves can be calculated for different experimental conditions. (2) The various factors that determine the magnitude of current jump near the end point are quantitatively discussed, which provides some basis for choosing the optimal experimental conditions for the permanent stop method. (3) A simple method of determining the diffusion current constant is proposed.