Electrochemical measurement is a technique used to analyze the electrical properties of chemical substances. It involves measuring the voltage, current, or charge in a solution to understand the concentration of ions or the behavior of chemical reactions. This method is widely used in various fields, including environmental monitoring, battery technology, and biomedical research. In electrochemical measurements, devices like potentiometers and amperometers are commonly employed. These instruments help scientists and engineers gather data on how substances interact at the molecular level. By interpreting this data, researchers can develop new materials, improve energy storage systems, and monitor pollutants in the environment.