TBU Publications
Repository of TBU Publications

On the limits of high-speed microthermal focusing field-flow fractionation

DSpace Repository

Show simple item record


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 Scopus Sources, 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 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
utb.fulltext.affiliation Josef Janča,1 Věra Halabalová,2 Vladimír Polášek,3 Martin Vašina,1 and Anastasia Yu. Menshikova4 1 Faculty of Technology, Department of Physics and Materials Engineering, Tomas Bata University, Zlín, Czech Republic 2 Faculty of Technology, Department of Biochemistry and Food Analysis, Tomas Bata University, Zlín, Czech Republic 3 Faculty of Applied Informatics, Department of Mathematics, Tomas Bata University, Zlín, Czech Republic 4 Institute of Macromolecular Compounds, Russian Academy of Sciences,St. Petersburg, Russia Correspondence: Josef Janča, Faculty of Technology, Department of Physics and Materials Engineering, Tomas Bata University, Nad Stráněmi 4511, 760 05 Zlín, Czech Republic. E-mail:jjanca@ft.utb.cz
utb.fulltext.dates Submitted 4 January 2010 accepted 6 February 2010
utb.fulltext.sponsorship -
utb.fulltext.projects -
utb.fulltext.faculty Faculty of Technology
utb.fulltext.faculty Faculty of Technology
utb.fulltext.faculty Faculty of Applied Informatics
utb.fulltext.ou Department of Physics and Materials Engineering
utb.fulltext.ou Department of Biochemistry and Food Analysis
utb.fulltext.ou Department of Mathematics
Find Full text

Files in this item

Show simple item record