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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:
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.
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页码:1873 / 1880
页数:8
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