MEASURING CHLORINE CONCENTRATION

摘要

The concentration of a dissolved chlorine-containing species is monitored using an amperometric cell having a platinum working electrode, a counter electrode and a reference electrode. Water the chlorine concentration of which is to be monitored is tested to determine the current (i1) through the cell associated with the dischargeable chlorine-containing species, and the pH (pH1) of the water. The values of i1, pH1 and a calibration factor, mu (representative of the current generated in the cell per unit concentration of the said electrochemically dischargeable species), are used to calculate the total concentration (C11tot) of dissolved chlorine as a function of the fraction (f1) (formula (10) where x is 2.50 to 7.53 and y is 3.00 to 5.00.