A quinoline-based Schiff base for significant fluorescent “turn-on” and absorbance-ratiometric detection of Al3

A novel quinoline-based Schiff base fluorescent sensor BQPA had been synthesized and characterized by common spectroscopic methods. It showed highly sensitive fluorescent enhancement (300-fold) and ratiometric absorbance for the determination of Al 3+ with low detection limits of 31 nM in CH 3 CH 2...

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Bibliographic Details
Published inChemical papers Vol. 73; no. 6; pp. 1469 - 1479
Main Authors Ma, Yu-Qing, Sun, Xue-Jiao, Li, Ming-Qiang, Zeng, Shuang, Xing, Zhi-Yong, Li, Jin-Long
Format Journal Article
LanguageEnglish
Published Cham Springer International Publishing 01.06.2019
Springer Nature B.V
Subjects
Absorbance
Biochemistry
Biotechnology
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Fluorescence
Imines
Industrial Chemistry/Chemical Engineering
Materials Science
Medicinal Chemistry
NMR
Nuclear magnetic resonance
Original Paper
Quinoline
Stoichiometry
Titration
Schiff base
Quinoline
Fluorescence
Al
Ratiometric
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Summary:A novel quinoline-based Schiff base fluorescent sensor BQPA had been synthesized and characterized by common spectroscopic methods. It showed highly sensitive fluorescent enhancement (300-fold) and ratiometric absorbance for the determination of Al 3+ with low detection limits of 31 nM in CH 3 CH 2 OH/H 2 O (1: 9, v/v) solution. The stoichiometry of the BQPA–Al 3+ complex was 1:1, determined by Job plots curve and further confirmed by HRMS, 1 H NMR titration and FT-IR spectrum. Moreover, the potential application of BQPA in the detection of Al 3+ was estimated in real water samples. Graphical abstract
ISSN:2585-7290
0366-6352
1336-9075
DOI:10.1007/s11696-019-00698-w