To quantify the concentration of sodium ions in a given sample using potentiometry, you can follow these steps:1. Prepare the sample: First, collect the sample containing sodium ions and make sure it is in liquid form. If necessary, dilute the sample to a suitable concentration range for the potentiometric measurement.2. Select an appropriate electrode: For sodium ion measurement, use a sodium ion-selective electrode ISE . This electrode is sensitive to sodium ions and generates a potential voltage proportional to the logarithm of the sodium ion activity in the sample.3. Calibration: Prepare a series of sodium ion standard solutions with known concentrations. Measure the potential of each standard solution using the sodium ISE and a reference electrode e.g., Ag/AgCl electrode . Plot the measured potentials against the logarithm of the sodium ion concentrations to create a calibration curve.4. Measure the sample potential: Immerse the sodium ISE and the reference electrode in the sample solution. Record the potential voltage generated by the electrodes.5. Determine the sodium ion concentration: Use the calibration curve to find the corresponding sodium ion concentration for the measured potential of the sample. If necessary, correct the concentration for any dilution that was performed in step 1.6. Validate the results: To ensure the accuracy of the measurements, it is recommended to perform the analysis in duplicate or triplicate and calculate the average concentration. Additionally, analyze a quality control sample with a known sodium ion concentration to confirm the accuracy and precision of the method.By following these steps, you can successfully quantify the concentration of sodium ions in a given sample using potentiometry.