Abstract
A rapid and sensitive flow-injection chemiluminescence method is described for the determination of dichloro- and trichloroisocyanuric acids based on the chemiluminescence produced during their reaction with luminol in alkaline medium. The effects of analytical and flow-injection variables on these chemiluminescence systems and determination of both oxidants are discussed. The optimized method yielded 3σ detection limits of 8×10–8 and 5×10–8 mol L–1 for the sodium dichloroisocyanurate and trichloroisocyanuric acid, respectively. The optimum conditions were found to be as follows: NaOH, 1×10–1 mol L–1; luminol, 5×10–3 mol L–1; KI, 2×10–3 mol L–1 and flow rate, 3.5 mL min–1.
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The authors wish to express their gratitude to Shiraz University Research Council for the support of this work.
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Safavi, A., Karimi, M.A. Flow-injection chemiluminescence determination of chlorinated isocyanuric acids. Anal Bioanal Chem 375, 424–427 (2003). https://doi.org/10.1007/s00216-002-1689-9
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DOI: https://doi.org/10.1007/s00216-002-1689-9