Full Length Research Article SYNTHESIS AND CHARAC TERIZATION OF A NEW Z n 2+ - SELECTIVE PROBE BASE D ON BENZOYL HYDRAZINE DERIVATIVE
2014
A benzoyl hydrazine derivative was successfully characterized as an “off - on” type fluorescent probe for Zn2+. A prominent fluorescence enhancement at 480 nm was observed in the presence of Zn2+, accompanied by the change in the absorption spectrum in ethanol - water solution (9:1, v:v, pH 6.3, 20 mM HEPES). With the optimized experimental conditions, the probe exhibited a dynamic response range for Zn2+ from 0.5 μM to 4.0 μM with a detection limit of 0.16 μM.
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