High-Speed Micro-Thermal Focusing Field-Flow Fractionation of Micron-Size Particles

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Title:High-Speed Micro-Thermal Focusing Field-Flow Fractionation of Micron-Size Particles
Creators:
Ananieva, Irina A.
Menshikova, Anastasia Yu.
Evseeva, Tatiana G.
Janča, Josef
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 69, 2, pp. 322-329
Uncontrolled Keywords:Micro-thermal focusing field-flow fractionation, Polystyrene latex particles, Polymers, Colloids, Separation of micron-size particles, Macromolecules

Abstract

Micron-size polystyrene-based latex particles were separated by using new micro-thermal field-flow fractionation (micro-TFFF). The order of retention from the largest to the smallest particles that appears at high field strength and high flow rate corresponds to the focusing mechanism which itself is a consequence of the lift forces acting on the particles. The mechanism of steric exclusion can only be effective at low flow rates of the carrier liquid. Whenever high-speed separation was performed, the focusing effect clearly dominated the FFF mechanism. This application of micro-TFFF in focusing mode to the separation of the particles is the first one published. As a result, micro-TFFF thus became a very universal technique for the separation of synthetic and natural macromolecules and of particles of various origin and size up to large (micron-size) diameter. <p>

Title:High-Speed Micro-Thermal Focusing Field-Flow Fractionation of Micron-Size Particles
Creators:
Ananieva, Irina A.
Menshikova, Anastasia Yu.
Evseeva, Tatiana G.
Janča, Josef
Uncontrolled Keywords:Micro-thermal focusing field-flow fractionation, Polystyrene latex particles, Polymers, Colloids, Separation of micron-size particles, Macromolecules
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:69
Number:2
Page Range:pp. 322-329
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc20040322UNSPECIFIED
ID Code:2212
Item Type:Article
Deposited On:06 Feb 2009 17:16
Last Modified:06 Feb 2009 16:16

Citation

Ananieva, Irina A.; Menshikova, Anastasia Yu.; Evseeva, Tatiana G.; Janča, Josef (2004) High-Speed Micro-Thermal Focusing Field-Flow Fractionation of Micron-Size Particles. Collection of Czechoslovak Chemical Communications, 69 (2). pp. 322-329. ISSN 0010-0765

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