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A sensitive and selective "turn-on" fluorescent probe for Hg2+ based on thymine-Hg2+-thymine complex with an aggregation-induced emission feature

被引：38
|
作者：
Ma, Ke [1 ]
Li, Xing [1 ]
Xu, Bin [1 ]
Tian, Wenjing [1 ]
机构：
[1] Jilin Univ, State Key Lab Supramol Struct & Mat, Changchun 130012, Peoples R China
来源：
ANALYTICAL METHODS | 2014年 / 6卷 / 07期
基金：
高等学校博士学科点专项科研基金;
关键词：
9,10-DISTYRYLANTHRACENE DERIVATIVES; MERCURY; SENSOR; IONS;
D O I：
10.1039/c3ay42255k
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A fluorescent turn-on approach for the sensitive and selective sensing of Hg2+ based on an aggregation-induced emission fluorescent molecule (DSA-T-2) containing 9,10-distyrylanthracene as a fluorophore and thymine as a Hg2+ receptor, was developed. Under optimum conditions, a linear relationship (R-2 = 0.9894) was obtained between the fluorescent intensity and the concentration of Hg2+ from 7 x 10(-7) mol L-1 to 1 x 10(-5) mol L-1. The theoretical detection limit of Hg2+ was evaluated to be 3.4 x 10(-7) mol L-1. And the selectivity towards Hg2+ was good compared to other metal ions.
引用
收藏
页码：2338 / 2342
页数：5
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