Novel pyrazoline-based selective fluorescent sensor for Zn2+ in aqueous media

被引：72
|
作者：
Gong, Zhong-Liang [1 ]
Ge, Fei [1 ]
Zhao, Bao-Xiang [1 ]
机构：
[1] Shandong Univ, Sch Chem & Chem Engn, Inst Organ Chem, Jinan 250100, Peoples R China
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2011年 / 159卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Pyrazoline; Fluorescent sensor; Zinc ion detection; Selective; INTRAMOLECULAR CHARGE-TRANSFER; TRANSITION-METAL IONS; ZINC ION; BETA-CYCLODEXTRIN; PHYSIOLOGICAL PH; DERIVATIVES; DESIGN; CHEMOSENSORS; ZN(II); PROBES;
D O I：
10.1016/j.snb.2011.06.064
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
This work describes the preparation of a novel pyrazoline compound and the properties of its UV-vis absorption and fluorescence emission. Moreover, this compound can be used to determine Zn2+ ion with high selectivity and a low detection limit in the HEPES (20 mM HEPES, pH = 7.2, 50% (v/v) CH3CN) buffer solution. This sensor forms a 1:1 complex with Zn2+ and shows a fluorescent enhancement by chelation enhanced fluorescence effect with good tolerance of other metal ions. In addition, this sensor is very sensitive with fluorometric detection limit of 0.12 mu M. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：148 / 153
页数：6
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