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Model-Independent Aspects of Field–Flow Fractionation Theory

✍ Scribed by B.A. Buffham

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
246 KB
Volume
181
Category
Article
ISSN
0021-9797

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✦ Synopsis

conditions are that the column is in equilibrium internally The mean-residence-time theorem allows model-independent reand with the feed stream before and long after the transient, sults to be obtained for chromatographic retention times. This and that the retention time be taken as the arithmetic mean, method is applied here to field-flow fractionation. Theoretical reand not the maximum, of the effluent concentration-time sults are derived and calculations of concentration profiles near the record (4, 5). It is not necessary for the column to be near accumulating wall and separation factors are presented for condiequilibrium during the passage of the transient. The theory tions typical of field-flow fractionation.

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