Comments on the separation efficiency of asymmetrical flow field-flow fractionation in channels of constant channel and crossflow velocities leading to constant separation efficiency

Comments on the separation efficiency of asymmetrical flow field-flow fractionation in channels of constant channel and crossflow velocities leading to constant separation efficiency

It is shown theoretically that a claim in the literature about the overall separation efficiency of asymmetrical flow FFF channels being improved by geometries that permit a uniform channel flow velocity throughout the channel length is untrue.

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Veröffentlicht in:Journal of Chromatography A 2011-09, Vol.1218 (38), p.6848-6850
1. Verfasser: Wahlund, Karl-Gustav
Format: Artikel
Sprache:eng
Schlagworte:
Asymmetrical flow FFF
Chemical Sciences
chromatography
flow
Flow field-flow fractionation
Flow velocity gradient
fractionation
Fractionation, Field Flow - instrumentation
H-value
Kemi
Natural Sciences
Naturvetenskap
Organic Chemistry
Organisk kemi
separation
Separation efficiency
Trapezoidal channel geometry
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Beschreibung
Zusammenfassung:It is shown theoretically that a claim in the literature about the overall separation efficiency of asymmetrical flow FFF channels being improved by geometries that permit a uniform channel flow velocity throughout the channel length is untrue.
ISSN:0021-9673
1873-3778
1873-3778
DOI:10.1016/j.chroma.2011.07.060