溶出计时电位法是近年来被逐渐重视起来的一种电化学分析方法。特别是以玻态石墨电极为指示电极的溶出计时电位法能获得很高的灵敏度。这一方法的要点是先将待测离子在恒电位的条件下电解沉积于玻态石墨电极的表面,然后在恒电流的条件下使之溶出,不同的金属将根据其不同的氧化还原电位 Dissolution timing potential method is gradually taken seriously in recent years, an electrochemical method. In particular, the glassy graphite electrode as the indicator electrode dissolution time potentiometry method can obtain a high sensitivity. The main point of this method is that the ions to be measured are electrolytically deposited on the surface of the glassy graphite electrode under potentiostatic conditions and then dissolved under constant current conditions. Different metals will be electrolyzed according to their different redox potential