Micka公式的修正及应用

MODIFICATION AND APPLICATION OF MICKA'S EQUATION

本文综述了几年来作者从事交流示波极谱基础理论研究所取得的进展。修正了Micka公式,使其在实际应用中发挥了作用,提出了用交流示波极谱图快速估算电极双电层微分电容,电荷曲线和电毛细曲线的新方法,提出了充电电流下的示波极谱滴定法,研究了电参数对终点时示波图变化的影响。

Although oscillopolarographic titration has been well developed, yet the theory of oscillopolaro gram is still lacking. This paper reviews the studies on the theoty of oscillopolarogram based on Micka's equation. 1. Micka's equation has been modificated to meet the needs of the actual experimental condi- tion. 2. Using the conception of 'critical current', the modified Micka's equation is changed to some simple forms, which can be used to interpret the a. c. oscillopolarogram obtained at various conditions. The theoretical conclusions are verified by experimental works. 3. New methods of evaluating the differential capacity of electrical double layer, the charging curve and electrocapillary curve on the basis of a. c. oscillopolarogam are described. 4. A new oscillopolarographic titration technique 'oscillopolarographic titration under capacity current' is advocated and the fundamental theory of this method has been stidied.