To determine the concentration of copper ions Cu2+ in a sample of industrial wastewater using voltammetry, follow these steps:1. Sample preparation: Collect a representative sample of the industrial wastewater. Filter the sample to remove any suspended solids or debris that may interfere with the voltammetric analysis.2. Calibration: Prepare a series of standard solutions containing known concentrations of copper ions e.g., 0.1, 1, 10, and 100 ppm . Perform voltammetric measurements on each standard solution to generate a calibration curve. This curve will be used to determine the concentration of copper ions in the wastewater sample.3. Voltammetric analysis: Perform voltammetric measurements on the wastewater sample using the same method and settings as for the calibration standards. Record the peak current Ip corresponding to the reduction of Cu2+ ions.4. Data analysis: Use the calibration curve to determine the concentration of copper ions in the wastewater sample. Find the Ip value of the sample on the y-axis of the calibration curve, and read the corresponding concentration on the x-axis. This is the concentration of Cu2+ ions in the sample in ppm.5. Quality control: To ensure the accuracy of the results, analyze a quality control sample with a known concentration of copper ions. The measured concentration should be within an acceptable range of the true value.6. Report the results: Report the concentration of copper ions in the wastewater sample in parts per million ppm .