Sinusoidal Alternating-Current Voltammetry and Metrological Properties of a Flat Voltammetric Electrode in the Time Domain

In this paper there were analyzed metrological properties of a flat electrode used to mark ions with the method of sinusoidal alternating-current voltammetry in the situation where on its surface an electrochemical reversible reaction of oxidizing / reduction takes place. The result of the analysis conducted is that such a voltammetric electrode functions like a converter type I.Metrological properties of such an electrode in the time domain are defined by the sensitivity and time constant. Values of these parameters are defined by the dimensions which characterize a voltammetric electrode, polarizing voltage and marked ions. Numeric simulations were conducted in order to determine the influence of particular dimensions on the values of the parameters defining the metrological properties. Their results show that the value of the sinusoidal voltage and its frequency have the greatest influence on the values of the parameters.