Circular Asymmetrical Flow Field-Flow Fractionation for the Semipreparative Separation of Particles

A new technique for the separation and characterization of particles and polymers based on asymmetrical flow field-flow fractionation was developed. The new circular asymmetrical flow field-flow fractionation instrument (CAFFFE) resembles a quasi-parallel arrangement of 12 individual flow channels....

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Bibliographic Details
Published in:Analytical chemistry (Washington) 2003-11, Vol.75 (22), p.6105-6108
Main Authors: Maskos, Michael, Schupp, Wolfgang
Format: Article
Language:English
Subjects:
Analytical chemistry
Chemistry
Chromatographic methods and physical methods associated with chromatography
Exact sciences and technology
General, instrumentation
Other chromatographic methods
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Summary:A new technique for the separation and characterization of particles and polymers based on asymmetrical flow field-flow fractionation was developed. The new circular asymmetrical flow field-flow fractionation instrument (CAFFFE) resembles a quasi-parallel arrangement of 12 individual flow channels. As compared to the classical asymmetrical flow field-flow fractionation (AF-FFF), which can be used so far only for analytical separation and characterization of particles and polymers, the CAFFFE allows the introduction of higher amounts of sample into the channel in a single run so that semipreparative to preparative separation becomes possible. This was demonstrated by the separation of polymer latex standards.
ISSN:0003-2700
1520-6882
DOI:10.1021/ac034394z