• An imine-based colorimetric chemodosimeter for the detection of hypochlorite (ClO- ) in aqueous media: its application in test strips and real water samples

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    • Keywords


      Hypochlorite; colorimetric; chemodosimeter; theoretical calculations

    • Abstract


      A highly selective colorimetric chemodosimeter ASAD, (E)-2-((4-(diethylamino)-2-hydroxybenzylidene) amino)-5-methoxybenzenesulfonic acid, was readily synthesized and characterized. The probe ASAD could selectively recognize hypochlorite (ClO-) through an oxidative cleavage of C=N bond with acolor change from yellow to colorless and detected it down to a low concentration of 0.95 μM. Importantly, ASAD could be employed as a practical and efficient optical sensor for ClO− in test strips and water samples. Moreover, the detection process of ASAD to hypochlorite was demonstrated by UV-vis spectroscopy, NMR titration and theoretical calculations.

    • Author Affiliations



      1. Department of Fine Chemicals, Seoul National University of Science and Technology, Seoul 139-740, Republic of Korea
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  • Journal of Chemical Sciences | News

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