Flow injection analysis for residual chlorine using Pb(II) ion-selective electrode detector

Aki Sakai, Akihide Hemmi, Hiromitsu Hachiya, Fumie Kobayashi, Satoshi Ito, Yasukazu Asano, Toshihiko Imato, Yoshito Fushinuki, Isao Taniguchi

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    21 Citations (Scopus)


    A simple flow injection analysis (FIA) system for residual chlorine in tap water has been developed by using a Pb(II) ion-selective electrode (ISE) detector. The method is based on a specific response of the Pb(II)-ISE to residual chlorine. The FIA system consists of a millivolt meter, a peristaltic pump, a Pb(II)-ISE detector and a recorder. A linear working curve between peak height and concentration of residual chlorine was obtained from 0.1 to 1 mg l-1 for the developed FIA system. The relative standard deviation for repeated injections of a 0.2 mg l-1 residual chlorine sample was 2%. The regression line and its correlation factor between the conventional o-tolidine colorimetric method and the present method were Y=0.759 X 0.17 and 0.967, respectively, for this determination.

    Original languageEnglish
    Pages (from-to)575-581
    Number of pages7
    Issue number3
    Publication statusPublished - Jan 1998

    All Science Journal Classification (ASJC) codes

    • Analytical Chemistry


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