Volatile organic compounds (VOCs) are compunds that have adverse effects on both the environment and human health. Emissions of VOCs have increased significantly over recent decades as a result of increasing industrialization. Since monitoring and determining VOCs concentrations has become increasingly important for evaluating their impact on health, the environment and various objects, much attention has been paid to the development of new and improved analytical methods for their detection.
Within the scope of this work, I investigated the potential for determining the concentration of acetic acid using electrochemical methods. Platinum screen-printed electrodes were coated with copper using electrodeposition and used for further experiments. The electrodes were exposed to acetic acid and cyclic voltammetry was succesfully applied for the detection of its presence. The optimal time was determined to be 24 h, providing good repeatability of the electrochemical response. Furthermore, cyclic voltammetry revealed a linear dependence of the reduction current on the acetic acid concentration in the range between 0 % and 0,5 % (v/v), with the highest coefficient of determination (R$^2$) being 0.9984. A linear response was also observed using the Tafel analysis method, where the corrosion potential showed a linear dependence on acetic acid concentration across the entire concentration range from 0 % to 1 % (v/v).
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