Electrochemical characterization of nanosurface-modified screen-printed electrodes by using a source measure unit

In this study, the performance of a source measure unit (SMU) performing cyclic and differential pulse voltammetry analyses, in comparison to potentiostat, is investigated. SMU is a versatile and accurate tool, capable of sourcing and measuring simultaneously and is comparable to the use of a potentiostat for such measurements. Here, two surface-functionalized screen-printed carbon electrodes with two different nanocomposites were utilized to represent the electrochemical system. The results unveil that the electrochemical behaviour of SMU is qualitatively comparable to that of the potentiostat with more than 97% accuracy; for both cyclic voltammetry (CV) and differential pulse voltammetry (DPV). Consequently, SMU is feasible for CV and DPV measurements.