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On the Limits of High-Speed Microthermal Focusing Field-Flow Fractionation

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dc.title On the Limits of High-Speed Microthermal Focusing Field-Flow Fractionation en
dc.contributor.author Janča, Josef
dc.contributor.author Halabalová, Věra
dc.contributor.author Polášek, Vladimír
dc.contributor.author Vašina, Martin
dc.contributor.author Menshikova, Anastasia
dc.relation.ispartof International Journal of Polymer Analysis and Characterization
dc.identifier.issn 1023-666X OCLC, Ulrich, Sherpa/RoMEO, JCR
dc.date.issued 2010
utb.relation.volume 15
utb.relation.issue 3
dc.citation.spage 191
dc.citation.epage 197
dc.type article
dc.language.iso en
dc.publisher Taylor and Francis Ltd. en
dc.identifier.doi 10.1080/10236661003681214
dc.relation.uri http://www.informaworld.com/smpp/content~db=all?content=10.1080/10236661003681214
dc.subject vliv rychlosti cs
dc.subject FFF cs
dc.subject hranice použití cs
dc.subject Field-flow fractionation en
dc.subject Microfluidic conduit en
dc.subject Separation en
dc.subject Microparticles en
dc.subject Relaxation en
dc.subject Focusing en
dc.subject Optimization en
dc.description.abstract Migrace částic vystavených gravitačnímu poli a teplotnímu gradientu je studována teoreticky i experimentálně. cs
dc.description.abstract The migration of the microparticles exposed to the gravitational-buoyancy force and lift force, and transported by the flow of the carrier liquid inside the microfluidic conduits was studied from the viewpoint of the transient period (the relaxation) between the moment at which the particles start to be transported by the hydrodynamic flow and the time at which they are focused at an equilibrium position. Relaxation times were calculated theoretically by incremental numerical method and the results were compared with the experimental data obtained on two microfluidic channels of different lengths and for different average linear velocities of the carrier liquid. It has been found that the maximal linear velocity of the carrier liquid in Microthermal Field-Flow Fractionation channel whose dimensions were already optimized is of the order of few cm/s under the investigated experimental conditions. At this velocity, the contribution of the secondary relaxation time is negligible compared to the retention time of the micrometer-sized particles en
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1001171
utb.identifier.rivid RIV/70883521:28110/10:63509425!RIV11-MSM-28110___
utb.identifier.obdid 43864324
utb.identifier.scopus 2-s2.0-77951212857
utb.identifier.wok 000277459800006
utb.source j-riv
utb.contributor.internalauthor Janča, Josef
utb.contributor.internalauthor Halabalová, Věra
utb.contributor.internalauthor Polášek, Vladimír
utb.contributor.internalauthor Vašina, Martin
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