A ppb level turn-on fluorescence chemosensor for the detection of Zn2+

被引：14

作者：

Jiang, Jian-Qiao ^{[1
]}

Sun, Chun-Lin ^{[1
]}

Shi, Zi-Fa ^{[1
]}

Xu, Zhu-Guo ^{[1
]}

Zhang, Hao-Li ^{[1
]}

机构：

[1] Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem, Key Lab Special Funct Mat & Struct Design, Lanzhou 730000, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2015年 / 220卷

基金：

中国国家自然科学基金;

关键词：

Zn2+ probe; Squaraine; Density functional theory; Time dependent density functional theory; SQUARAINE; ZINC; PROBE; SENSOR; DYES; ABSORPTION; CHEMISTRY;

D O I：

10.1016/j.snb.2015.05.122

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Zn has vital importance to the environment as well as human health. To regulate its dietary ingestion, it is important to monitor its presence in our food and environment, evoking more accurate and more sensitive ways to quantitatively determine its content in the environment. We herein present a squaraine-based chemosensor, namely DMPSQ, which has turn-on fluorescence response toward Zn2+ ion with good linearity, high selectivity and sensitivity down to 80 ppb. Theoretical calculations were also conducted to provide insight to the sensing mechanism and the spectroscopic properties of the compound. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：659 / 664

页数：6

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