Determination of free chlorine based on ion chromatography-application of glycine as a selective scavenger.

ABSTRACT: Free available chlorine (FAC) is the most widely used chemical for disinfection and in secondary disinfection; a minimum chlorine residual must be present in the distribution system. FAC can also be formed as an impurity in ClO₂ production as well as a secondary oxidant in the ClO₂ application, which has to be monitored. In this study, a new method is developed based on the reaction of FAC with glycine in which the amine group selectively scavenges FAC and the N-chloroglycine formed can be measured by ion chromatography with conductivity detector (IC-CD). Utilizing IC for N-chloroglycine measurement allows this method to be incorporated into routine monitoring of drinking water anions. For improving the sensitivity, IC was coupled with post-column reaction and UV dete

SUBMITTER: Abdighahroudi MS 

PROVIDER: S-EPMC7550385 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature