2020
DOI: 10.6023/cjoc202005084
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A Highly Sensitive and Selective “Off-On” Fluorescent Probe for Cu2+ Based on Rhodamine B Hydrazone

Abstract: Ethyl 5-formyl-3,4-dimethyl-pyrrole-2-carboxylate and rhodamine B hydrazide were used to synthesize a rhodamine derivative R1. Notably, the as-synthesized R1 displayed great sensitivity and selectivity, which was utilized to be an off-on fluorescence probe for Cu 2+ detection in mediums that contained water. Besides, the Cu 2+ ions limit of detection (LOD) was 0.201 µmol•L-1 , and R1 was able to sense Cu 2+ by "naked-eye" according to the change in color to pink from colorless. In addition, Cu 2+ detection was… Show more

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Cited by 6 publications
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