Hollow fiber-based liquid-liquid-liquid micro-extraction with osmosis: I. Theoretical simulation and verification

	Hollow fiber-based liquid-liquid-liquid micro-extraction with osmosis: I. Theoretical simulation and verification
	Wu, Qian; Wu, Dapeng; Geng, Xuhui; Shen, Zheng; Guan, Yafeng
刊名	journal of chromatography a
	2012-07-27
卷号	1248 页码:32-40
关键词	Hollow fiber-based liquid-liquid-liquid micro-extraction Osmosis Mass transfer kinetic model
通讯作者	关亚风
产权排序	1,1
英文摘要	osmosis in hollow fiber-based liquid-liquid-liquid micro-extraction (hf-lllme) was validated and utilized to improve enrichment factor of extraction in this study. when donor phase (sample solution) with higher ion strength than acceptor phase (extraction phase) was used, osmosis was established from acceptor phase, through organic membrane to donor phase. the mass flux expression of analytes across the organic membrane was established based on the convective-diffusive kinetic model, and the kinetic process for hf-lllme with osmosis was simulated. simulation results indicated that osmosis from acceptor phase to donor phase can increase enrichment factor of hf-lllme, accelerate extraction process, and even result in the distribution ratio of analytes between donor and acceptor phase exceeding their partition coefficient. this phenomenon was verified by the experimental data of extraction with six organic acids and four organic bases as the model analytes. (c) 2012 elsevier b.v. all rights reserved.
学科主题	物理化学
类目[WOS]	biochemical research methods ; chemistry, analytical
研究领域[WOS]	biochemistry & molecular biology ; chemistry
关键词[WOS]	soluble surfactant solutions ; environmental water samples ; phase microextraction ; membrane extraction ; mass-spectrometry ; reverse-osmosis ; aromatic-amines ; urine samples ; chromatography ; transport
收录类别	SCI
语种	英语
WOS记录号	WOS:000306580100005
公开日期	2013-10-11
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/117908]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem CAS, Dept Instrumentat & Analyt Chem, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Wu, Qian,Wu, Dapeng,Geng, Xuhui,et al. Hollow fiber-based liquid-liquid-liquid micro-extraction with osmosis: I. Theoretical simulation and verification[J]. journal of chromatography a,2012,1248:32-40.
APA	Wu, Qian,Wu, Dapeng,Geng, Xuhui,Shen, Zheng,&Guan, Yafeng.(2012).Hollow fiber-based liquid-liquid-liquid micro-extraction with osmosis: I. Theoretical simulation and verification.journal of chromatography a,1248,32-40.
MLA	Wu, Qian,et al."Hollow fiber-based liquid-liquid-liquid micro-extraction with osmosis: I. Theoretical simulation and verification".journal of chromatography a 1248(2012):32-40.