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当加一低频交流电场于浸在一氧化还原体系的水溶液中的一对铂电极上时,在每一个电极上产生一直流电位。此电位可借参考电极测得。这种现象被称为氧化还原动力效应,因为它起源于在电极上进行的氧化还原反应的动力学过程。所产生的直流电位称为氧化还原动力电位(ψ)。氧化还原动力滴定是利用在滴定过程中,当达到到当点时,ψ值产生突变的现象,从而来确定滴定的终点。由于以上的滴定是在恆电流下进行的,故有这样的可能:即测
When a low frequency AC electric field is applied to a pair of platinum electrodes immersed in an aqueous solution of a redox system, a DC potential is generated at each electrode. This potential can be measured by reference electrode. This phenomenon is called the redox kinetic effect because it originates from the kinetic process of the redox reaction carried out on the electrode. The resulting DC potential is called the redox potential (ψ). Redox kinetic titration is the use of titration in the process, when it reaches the point, ψ value of the phenomenon of mutation, in order to determine the end of the titration. Since the above titration is carried out at a constant current, it is possible that: the measurement