A highly selective and sensitive coumarin derived fluorescent probe for detecting Hg2+ in 100% aqueous solutions

被引：41

作者：

Pang, Bing-jie ^{[1
]}

Li, Qi ^{[1
]}

Li, Chao-rui ^{[1
]}

Yang, Zheng-yin ^{[1
]}

机构：

[1] Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem, Lanzhou 730000, Gansu, Peoples R China

来源：

JOURNAL OF LUMINESCENCE | 2019年 / 205卷

基金：

中国国家自然科学基金;

关键词：

Fluorescent probe; Coumarin; Detection limit; Aqueous solutions; Hg2+; OPTICAL-DETECTION; MERCURY; CHEMOSENSOR; SENSORS; IONS; FE3+; RECOGNITION; DERIVATIVES; RHODAMINE; AL3+;

D O I：

10.1016/j.jlumin.2018.09.042

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Giving the fact that Hg2+ is closely related to health and disease, a new fluorescent probe, 4-methylcoumarin-7-oxythioformate (L), was designed and synthesized for the detection of Hg2+ in 100% aqueous solutions. The free L displayed extremely weak fluorescence emission when excited at 325 nm, and a fluorescence emission band centered at 450 nm obviously emerged when Hg2+ was added, with the fluorescence color changing from colorless to blue in 100% aqueous solutions. Additionally, L exhibited the features of high selectivity, high sensitivity and fast response towards Hg2+. More importantly, we also explored the practical application of detecting Hg2+ by test strips, which provided a simple and convenient method for detecting Hg2+.

引用

页码：446 / 450

页数：5

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