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学科主题: 物理化学
题名: Hollow fiber-based liquid-liquid-liquid micro-extraction with osmosis: I. Theoretical simulation and verification
作者: Wu, Qian1;  Wu, Dapeng1;  Geng, Xuhui1;  Shen, Zheng1;  Guan, Yafeng1
通讯作者: 关亚风
关键词: Hollow fiber-based liquid-liquid-liquid micro-extraction ;  Osmosis ;  Mass transfer kinetic model
刊名: JOURNAL OF CHROMATOGRAPHY A
发表日期: 2012-07-27
DOI: 10.1016/j.chroma.2012.05.087
卷: 1248, 页:32-40
收录类别: SCI
文章类型: Article
部门归属: 1
项目归属: 105
产权排名: 1,1
类目[WOS]: Biochemical Research Methods ;  Chemistry, Analytical
研究领域[WOS]: Biochemistry & Molecular Biology ;  Chemistry
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.
关键词[WOS]: SOLUBLE SURFACTANT SOLUTIONS ;  ENVIRONMENTAL WATER SAMPLES ;  PHASE MICROEXTRACTION ;  MEMBRANE EXTRACTION ;  MASS-SPECTROMETRY ;  REVERSE-OSMOSIS ;  AROMATIC-AMINES ;  URINE SAMPLES ;  CHROMATOGRAPHY ;  TRANSPORT
语种: 英语
WOS记录号: WOS:000306580100005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/117908
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem CAS, Dept Instrumentat & Analyt Chem, Dalian 116023, Peoples R China

Recommended Citation:
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.
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