Colorimetric and fluorescent sensor for selective sensing of Hg2+ ions in semi aqueous medium

被引：26
|
作者：
Udhayakumari, Duraisamy [1 ]
Velmathi, Sivan [1 ]
机构：
[1] Natl Inst Technol, Organ & Polymer Synth Lab, Dept Chem, Tiruchirappalli 620015, Tamil Nadu, India
来源：
JOURNAL OF LUMINESCENCE | 2013年 / 136卷
关键词：
Colorimetric titration; Hg2+ ion sensor; DMSO: water mixture; UV-vis spectroscopy; Fluorescence spectroscopy; HG2+-SELECTIVE CHEMODOSIMETER; MERCURY LEVELS; METAL-IONS; WATER; CHEMOSENSORS; SPIROLACTAM; MOLECULES; RECEPTOR; BINDING; HG(II);
D O I：
10.1016/j.jlumin.2012.11.011
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A highly sensitive and selective detection of Hg2+ ion with simple salophen probe was developed. In DMSO: water (40:60, v/v) solution, Hg2+ ions coordinate with imine and shows color turn-off from yellow to colorless. Receptor 1 showed its ability for sensing Hg2+ cations sensitively through three channels: colorimetric, UV-vis and fluorescence spectroscopy. Hg2+ ions coordinate to the imine (Receptor 1) through NONO binding site forming 1:1 complex. It exhibits fluorescent 'Turn-on' behavior based on solvent polarity. The detection limit of our receptor with mercury is 1 mu g L-1. (c) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：117 / 121
页数：5
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