摘要/Abstract

以5-甲酰基-3，4-二甲基吡咯-2-羧酸乙酯和罗丹明B酰肼为原料，合成了一种"Off-On"型罗丹明衍生物Cu²⁺荧光探针R1.探针R1对Cu²⁺识别具有高选择性和高灵敏度，其检出限（LOD）为0.201 μmol·L^-1，此外探针R1与Cu²⁺作用后颜色从无色变为粉红色，可以实现Cu²⁺的"裸眼检测".探针R1成功用于实际水样中Cu²⁺的检测.
关键词: 荧光探针, 罗丹明, 吡咯, Cu^2＋
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 Cu²⁺ detectionin mediums that contained water. Besides, the Cu²⁺ ions limit of detection (LOD) was 0.201 μmol·L^-1, and R1 was able to sense Cu²⁺ by "naked-eye" according to the change in color to pink from colorless. In addition, Cu²⁺ detection was assessed within the actual water samples for testing the probe actual application.
Key words: fluorescent probe, rhodamine, pyrrole, Cu²⁺


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