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A naphthalene pyridine Schiff base 1 as a fluorescent chemosensor was developed for the detection of Fe2+ ions in CH3CN–H2O solution. Its binding properties toward various other heavy and transition metal ions including Fe3+ ions were examined. The sensor showed high selectivity and sensitivity towards Fe2+ ions in aqueous media with the lower detection limit of 1.5×10−7M. The fluorescence “turn-on”...
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