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Polystyrene microsphere-based lanthanide luminescent chemosensor for detection of organophosphate pesticides

Fluorescent microspheres of polystyrene-based Eu(Ⅲ) complexes were prepared from TentaGel resin, 2,6-bisbenzimidazolylpyridine and europium nitrate. The microspheres were characterized by FTIR spectroscopy, elemental analysis, XPS measurements and fluorescence spectroscopy. Characteristic red emissi...

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Published in:Journal of rare earths 2012-12, Vol.30 (12), p.1203-1207
Main Author: 涨红兴 花秀夫 庹新林 陈传治 王晓工
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description Fluorescent microspheres of polystyrene-based Eu(Ⅲ) complexes were prepared from TentaGel resin, 2,6-bisbenzimidazolylpyridine and europium nitrate. The microspheres were characterized by FTIR spectroscopy, elemental analysis, XPS measurements and fluorescence spectroscopy. Characteristic red emission under irradiation of 365 nm light from a hand-held UV lamp was observed for the microspheres either in a solution or solid-state. Fluorescent quenching was observed when the microspheres were exposed to a trace amount of diethyl chlorophosphate (DCP) in the dispersion. The material and property can be potentially used to fabricate chemosensor in the detection of organophosphates.
doi_str_mv 10.1016/S1002-0721(12)60206-3
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ispartof Journal of rare earths, 2012-12, Vol.30 (12), p.1203-1207
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source ScienceDirect Journals
subjects 2,6-bisbenzimidazolylpyridine
Dispersions
Eu(III) complex
Europium
fluorescent microbeads
Microspheres
Organophosphates
Polystyrene resins
Rare earth metals
rare earths
Spectroscopy
TentaGel resin
X-ray photoelectron spectroscopy
X射线光电子能谱
光检测
化学传感器
有机磷农药
磷酸二乙酯
稀土
聚苯乙烯微球
酯类化合物
title Polystyrene microsphere-based lanthanide luminescent chemosensor for detection of organophosphate pesticides
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