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Abstract
Summary. In this paper metrological properties of voltammetric electrodes are being analyzed in the frequency domain. It has been shown that in the case when a controlled electrochemical reaction is a process of ions transport, a voltammetric electrode acts like an order 1 measuring converter. Its metrological properties are described by sensitivity, limiting frequency, amplitude and phase errors. The analysis conducted has shown that a phase error of the voltammetric electrode is related to the mechanism of ions transport to and from its surface. Moreover, a galvanostatic method of measuring the voltammetric electrode phase error is described and suggested. The results of numerical simulations and laboratory verification show that the phase error is related to marked ions and to their concentration as well as to the construction of the voltammetric electrode used. Metrological properties of voltammetric electrodes in the frequency domain
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