A naked-eye selective detection of cyanide ion: studies on the effect of chromophores and spacers on ditopic receptors

被引：24
|
作者：
Kumar, Vinod [1 ]
Rana, Hemlata [1 ]
Kaushik, M. P. [1 ]
机构：
[1] Def R&D Estab, Proc Technol Dev Div, Gwalior 474002, India
来源：
ANALYST | 2011年 / 136卷 / 09期
关键词：
CDSE QUANTUM DOTS; COLORIMETRIC DETECTION; FLUORESCENT-PROBE; ANION RECOGNITION; PAIR RECOGNITION; METAL-IONS; WATER; CHEMOSENSOR; SENSOR; CHEMODOSIMETER;
D O I：
10.1039/c0an00959h
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A series of novel thiourea based receptors (1-12) with different signaling units and spacers have been synthesized for the detection of cyanide ion. Among these receptors, 4,4'-bis-[3-(4-cyanophenyl) thiourea]diphenyl sulfide 6 and 4,4'-bis-[3-(3-cyanophenyl)thiourea] diphenyl sulfide 9 exhibited selective detection of cyanide by the naked-eye as well as by UV-Vis spectroscopy. Furthermore, the chemosensor is insensitive to the presence of other environmentally relevant anions. The chromogenic transformation permits the detection of cyanide (TBA(+) and K(+) salts) in the natural environment.
引用
收藏
页码：1873 / 1880
页数：8
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