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Автор Van Man, Tran
Автор Berthier, Jean
Автор Ozil, Patrick
Автор Sarrut, Nicolas
Дата выпуска 2011-03-01
dc.description In this work, we present the design, fabrication and characterization of a novel micro-extractor that performs on-line extraction–concentration–detection (ECD) of target molecules flowing in a carrier liquid. The system comprises a primary microchannel containing a flowing aqueous carrier liquid and a secondary organic storage fluid circulating in an adjacent channel. The interfaces between the two immiscible fluids are stabilized by vertical micro-pillars. The system encompasses three functions: (i) extraction of the target molecules from the carrier fluid through the pillar-stabilized interfaces, (ii) concentration of the targets in the secondary organic solvent due to its very low—or zero—velocity and (iii) on-line detection via optical spectrometry. We successively present the analysis of the physics of the system, which has led us to a specific design, then the microfabrication of the chip, and finally we demonstrate the extraction, concentration and detection of lead ions (Pb<sup>2+</sup>) from a water flow.
Формат application.pdf
Издатель Institute of Physics Publishing
Копирайт 2011 Vietnam Academy of Science & Technology
Название A micro-extractor for concentration and determination of lead in water
Тип paper
DOI 10.1088/2043-6262/2/1/015013
Electronic ISSN 2043-6262
Print ISSN 2043-6254
Журнал Advances in Natural Sciences: Nanoscience and Nanotechnology
Том 2
Первая страница 15013
Последняя страница 15018
Аффилиация Van Man, Tran; University of Science, Vietnam National University, Ho Chi Minh City, Vietnam
Аффилиация Berthier, Jean; Leti-Minatec, CEA-Grenoble, 38054 Grenoble Cedex 9, France
Аффилиация Ozil, Patrick; Grenoble-INP, 38031 Grenoble Cedex 1, France
Аффилиация Sarrut, Nicolas; Leti-Minatec, CEA-Grenoble, 38054 Grenoble Cedex 9, France
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