Fluorescent chemical sensor based on double N2O2 cavities for continuous recognition of Cu2+ and Al3+

被引：62

作者：

Bian, Ruo-Nan ^{[1
]}

Wang, Ji-Fa ^{[1
]}

Li, Ya-Juan ^{[1
]}

Zhang, Yang ^{[1
]}

Dong, Wen-Kui ^{[1
]}

机构：

[1] Lanzhou Jiaotong Univ, Sch Chem & Biol Engn, Lanzhou 730070, Gansu, Peoples R China

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2020年 / 403卷

基金：

中国国家自然科学基金;

关键词：

Bis(salamo)-like tetraoxime; Fluorescent chemical sensor; Cu2+ ion; Al3+ ion; Test paper strip; ORGANIC NANOPARTICLES FONS; SELECTIVE RECOGNITION; SCHIFF-BASE; HIRSHFELD ANALYSES; TRINUCLEAR NICKEL(II); COMPLEXES SYNTHESES; CRYSTAL-STRUCTURE; LIVING CELLS; CHEMO-SENSOR; ZN2+;

D O I：

10.1016/j.jphotochem.2020.112829

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A fluorescent chemical sensor based on a bis(salamo)-like tetraoxime H2LS was designed and synthesized. The chemical sensor uses double N2O2 cavities as sensing elements, which can be combined with specific metal ions to achieve ion recognition. The chemical sensor can detect Cu2+ by the phenomenon of fluorescence quenching, and a test strip loaded with the sensor is used to quickly and accurately identify Cu2+. Besides, the chemical sensor also can continuously recognize Al3+ in the system and realize the interference-free identification effect of other trivalent metal ions on Al3+. Through H-1 NMR, mass spectrometry, infrared spectroscopy, and other experiments, the identification mechanism of the fluorescent chemical sensor was verified. The numerical values of LOD and Ka were calculated by the corresponding titration data and Benesi-Hildebrand formula.

引用

页数：9

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