Preparation and Property Study of High Fluorescence Quantum Yield and Fast Turn-on Aluminium Ion Fluorescent Probe
10.19756/j.issn.0253-3820.231042
- VernacularTitle:高荧光量子产率快速Turn-on型铝离子荧光探针的制备及性能研究
- Author:
Jue-Yuan CHEN
1
;
Shao-Wen DENG
;
Zhong-Yan LI
;
Lin YUAN
Author Information
1. 湖南科技学院化学与生物工程学院,永州 425199
- Keywords:
Schiff base;
Fluorescent probe;
Aluminium ion;
Fluorescence quantum yield;
Water sample detection
- From:
Chinese Journal of Analytical Chemistry
2025;53(11):1879-1888
- CountryChina
- Language:Chinese
-
Abstract:
Fluorescent probes L1 to L5 containing two recognition sites based on Schiff base were prepared for detection of Al3+.The probes were constituted by introducing two salicylaldehyde derivatives through hydrazide groups on isophthalic hydrazide.Among them,a fast turn-on fluorescence probe L1 for Al3+with high fluorescence quantum yield was found.The recognition performance and mechanism of probe L1 to Al3+were studied by multiple analysis methods.The results showed that probe L1 could rapidly and highly selectively recognize Al3+by fluorescent enhancement at 446 nm and the detection limit was as low as 4.65 nmol/L,and it was found that L1 complexed with Al3+in the molar ratio of 1:1.In addition,the calculation results of density functional theory(DFT)showed that two binding sites in the probe molecule connected two different Al3+,and each Al3+connected two adjacent probe molecules.Using quinine sulfate as a reference,the fluorescence quantum yield of L1-Al3+complex was as high as 30%.Probe L1 could also be applied to the detection of Al3+in real water samples.
