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	Highly sensitive and selective optical chemosensor for determination of Cu2+ in aqueous solution
	Xiang, Yu ; Li, Man ; Chen, Xiaotong ; Tong, Aijun
	2010-05-06 ; 2010-05-06
关键词	chemosensor Cu2+ colorimetry fluorescence inner filter effects fluorometry IONIZATION MASS-SPECTROMETRY FLUORESCENT CHEMOSENSORS DIVALENT COPPER RIGHT-ANGLE CU(II) ION METAL-IONS SENSORS RECOGNITION WATER CHEMODOSIMETER Chemistry, Analytical
中文摘要	A highly selective and sensitive rhodamine-based colorimetric chemosensor (1) for quantification of divalent copper in aqueous solution has been investigated in this work. It was designed using salicylaldehyde, hydrazone and rhodamine 6G as copper-chelating and signal-reporting groups, respectively. In environmentally friendly media (50% (v/v) water/ethanol and 10 mM NaAc-HAc neutral buffer (pH 7.0)), the sensor exhibited selective absorbance enhancement to Cu2+ over other metal ions at 529 nm, with a dynamic working range of 0.05-5.00 mu M and a detection limit of 10 nM Cu2+, respectively. To achieve fluorometric determination of Cu2+, the Cu2+-induced absorbance enhancement of 1 was efficiently converted to fluorescence quenching by fluorescence inner filter effects using rhodamine B (RB) as a fluorophore. The selectivity and sensitivity of fluorescence analysis were similar to those of absorptiometric measurement. Both absorptiometric and fluorometric methods were successfully applied to the detection of Cu2+ in three water samples. (c) 2007 Elsevier B.V. All rights reserved.
语种	英语 ; 英语
出版者	ELSEVIER SCIENCE BV ; AMSTERDAM ; PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/13457]
专题	清华大学
推荐引用方式 GB/T 7714	Xiang, Yu,Li, Man,Chen, Xiaotong,et al. Highly sensitive and selective optical chemosensor for determination of Cu2+ in aqueous solution[J],2010, 2010.
APA	Xiang, Yu,Li, Man,Chen, Xiaotong,&Tong, Aijun.(2010).Highly sensitive and selective optical chemosensor for determination of Cu2+ in aqueous solution..
MLA	Xiang, Yu,et al."Highly sensitive and selective optical chemosensor for determination of Cu2+ in aqueous solution".(2010).

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