Jump to main content
Jump to site search

Issue 10, 2015
Previous Article Next Article

Colorimetric detection of hypochlorite in tap water based on the oxidation of 3,3′,5,5′-tetramethyl benzidine

Author affiliations

Abstract

We have developed a simple method for the colorimetric detection of hypochlorite in tap water based on the oxidation of 3,3′,5,5′-tetramethylbenzidine (TMB). In aqueous solution at pH 4.0, hypochlorite, an oxidant, rapidly converts colourless TMB to a blue oxidized form. The presence of hypochlorite in tap water can in this way easily be detected with the naked eye, based on the obvious colour change. The system can detect concentrations of hypochlorite as low as 0.05 μM with an excellent linear relationship and good selectivity.

Graphical abstract: Colorimetric detection of hypochlorite in tap water based on the oxidation of 3,3′,5,5′-tetramethyl benzidine

Back to tab navigation

Supplementary files

Article information


Submitted
19 Mar 2015
Accepted
21 Apr 2015
First published
21 Apr 2015

Anal. Methods, 2015,7, 4055-4058
Article type
Communication
Author version available

Colorimetric detection of hypochlorite in tap water based on the oxidation of 3,3′,5,5′-tetramethyl benzidine

Y. Guo, Q. Ma, F. Cao, Q. Zhao and X. Ji, Anal. Methods, 2015, 7, 4055
DOI: 10.1039/C5AY00735F

Social activity

Search articles by author

Spotlight

Advertisements