CAJ | 학술논문

设计、合成了一种基于罗丹明B的铜离子荧光分子探针RF。研究发现在V 乙腈∶V 水＝1∶1介质中，化合物RF最大发射波长为566 nm， Cu2+可使探针RF的荧光强度明显增大，同时溶液颜色从无色变为桃红色。该荧光探针对Cu2+具有较高的灵敏度和较好的选择性。RF的选择性荧光增强是由于其对Cu2+的识别开环引起的。该探针对Cu2+的识别是不可逆的，而且pH对探针RF在中性水溶液中检测Cu2+几乎没有影响。
설계、합성료일충기우라단명B적동리자형광분자탐침RF。연구발현재V 을정∶V 수＝1∶1개질중，화합물RF최대발사파장위566 nm， Cu2+가사탐침RF적형광강도명현증대，동시용액안색종무색변위도홍색。해형광탐침대Cu2+구유교고적령민도화교호적선택성。RF적선택성형광증강시유우기대Cu2+적식별개배인기적。해탐침대Cu2+적식별시불가역적，이차pH대탐침RF재중성수용액중검측Cu2+궤호몰유영향。
In this paper, Cu2+ fluorescence enhancement probe RF based on rhodamine B has been synthesized. It was discovered that the fluorescence intensity of RF increased with the addition of Cu2+in acetonitrile/water (1 / 1, V / V) solution, the maximum emission wavelength was 566 nm. Addition of a Cu2+ion leads to an obvious enhanced fluorescence, accompanied by the significant color change from colorless to pink. RF showed good sensitivity and selectivity. The selective fluorescence enhancement of RF attributed to the spirolactam ring being opened upon the addition of Cu2+to RF. The recognition of Cu2+was not reversible, and compound RF was pH-insensitive Cu2+fluorescent probe.