本文讨论了电位溶出分析的理论,提出了静止拟微分电位溶出的概念,并导出其理论方程式。该方程式描述了静止拟微分电位溶出的峰值,峰电位和其它参数的关系。另外还通过实验验证了理论方程式,并讨论了采样电位间隔AE的选择,汞浓度的影响,静止电位溶出中电容本底产生的原因及其扣除的方法等。 This article discusses the theory of potential dissolution analysis, puts forward the concept of static quasi-differential potential dissolution, and derives its theoretical equation. This equation describes the relationship between peak quiescent potential and peak potential and other parameters. In addition, the theoretical equations are validated experimentally, and the selection of the sampling potential interval AE, the influence of mercury concentration, the reason of the capacitor background in the static potential dissolution and the deduction method are discussed.