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Utilization of the solution-of-groups concept in gas—liquid chromatography

✍ Scribed by Michal Roth; Josef Novák

Publisher
Elsevier Science
Year
1983
Tongue
English
Weight
695 KB
Volume
258
Category
Article
ISSN
1873-3778

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✦ Synopsis

The possibilities of utilizing the UNIFAC group model of activity coefficients for the prediction of gassliquid chromatographic retention data are discussed. Examples of the determination of the specific retention volumes of different types of solute compounds on both simple and mixed stationary phases, relative retentions, Kovats retention indices and differential sorption enthalpies are given. It appears that the original version of the UNIFAC model can be used merely to give a rough estimation of relative retentions, Kovats retention indices and sorption enthalpies.

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