Torbal chromatographic desalter

When the current passes through the solution, positive ions pass into one end compartment via the anion exchange membrane while negative ions pass into the other end compartment via the cation exchange membrane, eaving the solution reduced in inorganic salts. Each of the three compartments are separated from each other by ion-exchange membranes. Total desalting capacity: 6 ml. Sharp drop of current reading on meter indicates completion.