A turn-on fluorescent probe based on coumarin-anhydride for highly sensitive detection of hydrazine in the aqueous solution and gas states

被引：19

作者：

Wu, Guangfu ^{[1
,2
]}

Tang, Xin ^{[2
]}

Ji, Wengang ^{[1
]}

Lai, King Wai Chiu ^{[2
]}

Tong, Qingxiao ^{[1
]}

机构：

[1] Shantou Univ, Dept Chem, Shantou 515063, Guangdong, Peoples R China

[2] City Univ Hong Kong, Dept Mech & Biomed Engn, 83 Tat Chee Ave, Hong Kong, Hong Kong, Peoples R China

来源：

METHODS AND APPLICATIONS IN FLUORESCENCE | 2017年 / 5卷 / 01期

基金：

中国国家自然科学基金;

关键词：

fluorescent probe; coumarin-anhydride; hydrazine; Gabriel reaction; theoretical calculations; SELECTIVE DETECTION; FLUOROGENIC PROBE; GABRIEL MECHANISM; RATIONAL DESIGN; NAKED-EYE; SENSOR; OXIDATION;

D O I：

10.1088/2050-6120/aa5387

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this paper, a new coumarin-based fluorescent probe for hydrazine was rationally designed and successfully synthesized based on the Gabriel reaction. This novel probe enabled highly sensitive and selective detection of hydrazine. The detection limit was 43.6 nM(1.49 ppb). It displayed distinct changes in the intensity of both absorption and emission spectra upon the. addition of hydrazine and. remarkable color changes can be visually observed. The sensing mechanism of this probe toward hydrazine was characterized by 1 H. NMR and mass spectroscopy. Moreover, with the help of theoretical calculations, the. sensing capability of this probe for hydrazine detection was described: the electron structure. was modulated by a three-substituted group of coumarin once upon the. addition of hydrazine. In addition, a test paper experiment indicated its great potential in environment monitoring.

引用

页码：1 / 7

页数：7

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