Abstract − Analytical Sciences, 35(11), 1189 (2019).
Naphthalimide-based Probe for the Detection of Hypochlorite in a Near-perfect Aqueous Solution
Su Chan LEE and Cheal KIM
Department of Fine Chem., Seoul National University of Science and Technology, Seoul 138-733, Korea
A novel fluorescent turn-off sensor JM for hypochlorite was synthesized. JM showed a remarkable selectivity for ClO− over diverse competitive analytes, including reactive oxygen species (ROS), via deprotonation reaction. Detection limit for ClO− turned out to be 0.60 μM. Sensor JM successfully determined ClO− in natural water samples with satisfactory recovery. The sensing mechanism of JM to hypochlorite was demonstrated by fluorescent and UV-visible spectroscopy, ESI-mass, NMR titration and TD-DFT calculations.
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