Differential pulse voltammetry (DPV) is an electrochemical technique used to analyze the concentration of specific substances in a solution. It involves applying a series of voltage pulses to an electrode while measuring the resulting current. The difference in current between the pulses helps to identify and quantify the target analyte. This method is highly sensitive and can detect low concentrations of compounds, making it useful in various fields, including environmental monitoring, pharmaceutical analysis, and biomedical research. DPV is particularly effective for studying redox-active species, providing valuable information about their electrochemical properties.