Differential pulse voltammetric determination of free chlorine for water disinfection process

Sulistyo Saputro, Kô Takehara, Kazuhisa Yoshimura, Shiro Matsuoka, Narsito

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

The electrochemical detection of free chlorine based on the reduction at a gold electrode has been studied. The differential pulse voltammetric curves exhibited well-defined cathodic peaks. Investigations with this system suggested that the active species in the cathodic reaction is HClO. Excellent reproducibility was demonstrated at pH-5. The peak height could be used for accurate and rapid determination of free chlorine in a sample water. A linear relationship (r2=0.99) was found for the concentration range of 1-5-mg-Cl-dm-3 and the detection limit was estimated to be 0.04-mg-Cl-dm-3.

Original languageEnglish
Pages (from-to)2765-2768
Number of pages4
JournalElectroanalysis
Volume22
Issue number23
DOIs
Publication statusPublished - Dec 1 2010

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Electrochemistry

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