Abstract
This work investigated the chemiluminescent reaction of free chlorine with bis(2,4,6-(trichlorophenyl)oxalate) (TCPO) in the presence of 9,10-diphenylanthracene in acetonitrile/water medium, with analytical application for free chlorine in tap water. In the absence of free chlorine, the background signal increased with the pH and the chemiluminescence emission showed strong dependence with the sample acidity. A flow injection analysis system, for free chlorine determination, was developed. The linear range for free chlorine was (0.2–3.0)×10 −5 mol l −1. Chloramine 1.0×10 −5 mol l −1 and chlorite 1.0×10 −6 mol l −1 also enhanced the chemiluminescence intensity.
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