Novel quinolinium-derivated fluorescent fluoride chemosensor based on the F--triggered cascade reaction
Chen, Xi 1Chen, Zhihua 1Hu, Yan 1Ma, Lili 1Zhang, Ziyi 1Yi, Fengping 1Zhang, Hua 1Liu, Chuanxiang1
扫码查看
点击上方二维码区域，可以放大扫码查看
作者信息
1. Shanghai Inst Technol
折叠
Abstract
A quinolinium-based probe (QLS) was designed and successfully applied to detect fluoride based on F--triggered cascade reaction followed by formation of a non-fluorescent the neutral quinolone. The probe displayed significant changes in UV-visible absorption (red-shift 150 nm) and fluorescence emission intensities turn-off selectively for recognition of F-. Compared to the nonquaternary salt forms (QL), NMR titration and MS analysis were performed to confirm the sensing mechanism. Accordingly, the fluorescent test paper was prepared and conveniently used to detect fluoride in aqueous solution. (C) 2022 Elsevier Ltd. All rights reserved.
NSTL
Elsevier