A compact digital voltammograph for electrochemical analysis of aqueous solutions was created. Device’s construction and drawings of the electrochemical cell for the studying of small amounts of fluids are described. Electronic circuits are assembled on modern high-precision components. The device implemented using cyclic, normal pulse and differential pulse voltammetry. Experiments were carried out with solutions of copper ions and hydrogen peroxide to test operability and characteristics of the voltammograph. All implemented methods gave reproducible results that are consistent with the theory. Typical results of the experiments with solutions of copper ions are shown.

Keywords: voltammetry, voltammograph, voltammogram, electrochemical cell, analysis of solutions