Selective optical detection of HSO4 - via hydrolysis of a simple Schiff Base

被引：4

作者：

Dong, Zhen Ming ^{[1
]}

Wang, Jia Na ^{[1
]}

Wang, Wei ^{[1
]}

Chao, Jian Bin ^{[1
]}

Wang, Yu ^{[1
]}

机构：

[1] Shanxi Univ, Sch Chem & Chem Engn, Taiyuan 030006, Shanxi, Peoples R China

来源：

RESEARCH ON CHEMICAL INTERMEDIATES | 2018年 / 44卷 / 07期

关键词：

Optical; Detection; HSO4-; Schiff Base; Hydrolysis; TURN-ON CHEMOSENSOR; HYDROGEN SULFATE ANION; AQUEOUS-MEDIUM; FLUORESCENT CHEMOSENSOR; ION; RECEPTOR; SENSOR; RECOGNITION; COMPLEX; PROBE;

D O I：

10.1007/s11164-018-3351-y

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A very simple Schiff Base derived from 1-Naphthylamine and 4-(Trifluoromethy) benzaldehyde (L) was prepared as a selective colorimetric and turn-on fluorescent sensor for hydrogen sulfate. In the CH3CN:H2O (3:2, v/v) solvent system, L shows a highly selective colorimetric response to HSO4 (-) ions by changing its color from yellow to colorless immediately. In addition, the weakly fluorescent receptor L shows a highly selective enhancement of fluorescence intensity at 425 nm for HSO4 (-) upon excitation at 320 nm. The recognition process is proven to be hardly influenced by the other tested competitive anions. The sensing is suggested to involve a hydrolysis process promoted by HSO4 (-) which has been further supported by UV-Vis, H-1 NMR and HRMS spectroscopic studies. Applicability of L to detect HSO4 (-) in tap water has been demonstrated. An easy-to-prepare test strip of L has also been made for the naked-eye detection of HSO4 (-) in real samples.

引用

页码：4001 / 4013

页数：13

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