TOTAL EFFECTIVE CHLORINE MEASUREMENT DEVICE, METHOD FOR CORRECTION OF THE SAME, AND METHOD FOR MEASURING TOTAL EFFECTIVE CHLORINE

摘要

To provide a total effective chlorine measurement device, a method for correction of the device, and a method for measuring the total effective chlorine which can determine the total effective concentration of chlorine by a two-electrode polarographic method and also can determine an accurate total effective concentration of chlorine including hypobromous acid even in such a sample liquid containing bromine as sea water or a boiler cooling water.SOLUTION: A applied voltage selected from the 750±250-mV range is applied between a metal detection electrode 13 immersed in a sample liquid S and a counter electrode 15 made of platinum, an oxidation-reduction current flowing in the detection electrode and the counter electrode is measured, and the total effective concentration of chlorine in the sample liquid is determined from the obtained oxidation-reduction current.SELECTED DRAWING: Figure 1