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Voltammetry is competitive with other methods of analysis because of its rapidity, the ease of implementation, and the availability of measuring instruments. The analytical method of choice is the one that exhibits improved performance characteristics and higher rapidity. The main performance characteristics and the precision and accuracy of the results of voltammetric analysis, previously depend on the reproducibility of the area and properties of the working surface of an indicator electrode in the course of its long service.The reproducibility of the working surface of a dropping mercury electrode (DME) and its up-to-date modifications with the automatic detachment of a mercury drop is considered to be the standard [1]. Because of the toxicity of mercury and some inconveniences complicating the use of voltammetry with DME, the search is on for new electrode materials based on different metals and carbon-containing composites and pastes. Contrary to DME, solid electrodes ensure satisfactory reproducibility of results only after a complex procedure for regenerating their working surfaces. This procedure involves the stages of the mechanical, chemical, electrochemical [2-5], laser [6], or ultrasonic [7] treatment of the electrode surface. These techniques are time-consuming and labor intensive, whereas rapidity and ease of a method are important for systematic industrial control. The generalized data on different techniques for renewing solid electrodes are available [2][3][4][5][6][7][8]; however, insufficient attention has been given to the regeneration of electrodes by the cutting of a thin surface layer directly in a test solution before recording each voltammogram.In this report, we consider the last version of a device for the rapid and reliable renewal of the working surface of an indicator electrode by cutting a thin layer directly in a test solution.In this work, we present the results of comprehensive and long-term tests, which demonstrate the reproducibility of electrode areas and properties in the course of a long service of the device, the advantages of such a technique for regenerating electrodes, and longstanding applications of different analytical procedures and versions of the device to the solution of various tasks [9-44].EXPERIMENTAL Device for the mechanical renewal of the electrode surface. The device whose design was improved many times as it was tested has been developed to reliably regenerate the surface of indicator electrode [9][10][11][12]. The diagram of the device and the unit for the mechanical renewal the surface of a solid indicator electrode is presented in Figs. 1a and 1b. A changeable indicator electrode 1 (a rod with an outer diameter d = 4 mm) was inserted into a guiding tube 2 and fixed in it. The electrode then run along the unit of the electrode vertical advance 3 with the help of which it was ARTICLES Abstract -The design of a device for the rapid regeneration of the indicator electrode surface in a test solution is discussed. The results of testing this device are presen...

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