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	Directly suspended droplet microextraction in a rotating vial
	Gao Mingyuan ; Lu Yangcheng ; Luo Guangsheng
	2010-10-12 ; 2010-10-12
关键词	Microextraction Suspended droplet Nitrobenzene Water sample LIQUID-PHASE MICROEXTRACTION SINGLE-DROP WATER EXTRACTION HEADSPACE Chemistry, Analytical
中文摘要	In this paper, a novel suspended droplet microextraction method was developed for the detection of trace of organic compounds in water samples. The process was executed in a rotating extraction vial without the use of a stir bar. A single drop of octan-1-ol placed on top of the water sample was used as the solvent. The droplet remained on top of the water sample as a thin layer with an expanding surface area during the extraction stage, while during the sampling stage, the droplet was collected and sampled by inserting a needle. The volume of the microdroplet used was 3 mu L or less, to ensure high organic compound sensitivity. The microextraction experimental setup was simple, utilizing centrifugal forces and possesses the advantages of low cross-contaminant/interference and applicability to water samples apt to emulsification. Nitrobenzene was selected as a model organic compound, and samples were analyzed using gas chromatography (GC) or UV-vis spectrometry. Analysis of the microextraction method results showed a relative standard deviation (RSD) less than 3.82%. (C) 2009 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/123456789/79565]
专题	清华大学
推荐引用方式 GB/T 7714	Gao Mingyuan,Lu Yangcheng,Luo Guangsheng. Directly suspended droplet microextraction in a rotating vial[J],2010, 2010.
APA	Gao Mingyuan,Lu Yangcheng,&Luo Guangsheng.(2010).Directly suspended droplet microextraction in a rotating vial..
MLA	Gao Mingyuan,et al."Directly suspended droplet microextraction in a rotating vial".(2010).

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