Use of cyclodextrins in chromatography for selective separations, pre-concentration and preparation of defined mixtures

Interactions of cyclodextrins or cyclodextrin polymers with substances in the gaseous or liquid phase were studied under stationary and dynamic conditions. The results were utilized for Chromatographie purposes, selective separations, pre-concentration and the preparation of well defined gaseous mix...

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Bibliographic Details
Published in:Journal of Chromatography A 1985-12, Vol.349 (1), p.167-172
Main Authors: KRYSL, S, SMOLKOVA-KEULEMANSOVA, E
Format: Article
Language:English
Subjects:
Analytical chemistry
Chemistry
Chromatographic methods and physical methods associated with chromatography
Exact sciences and technology
Gas chromatographic methods
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Summary:Interactions of cyclodextrins or cyclodextrin polymers with substances in the gaseous or liquid phase were studied under stationary and dynamic conditions. The results were utilized for Chromatographie purposes, selective separations, pre-concentration and the preparation of well defined gaseous mixtures or solutions with low contents of the test substances. Positional isomers of benzene derivatives were separated by gas—solid chromatography. The inclusion complexes with substances in the gaseous state were obtained under stationary conditions and were used for the storage and preparation of mixtures with low contents of toluene. The formation of the cyclodextrin complexes was followed in the liquid—solid system under dynamic conditions. The gel capacities and the equilibrium constants for the inclusion complexes obtained from the breakthrough curves permit conclusions to be drawn concerning the use of cyclodextrins for selective pre-concentration.
ISSN:0021-9673
DOI:10.1016/S0021-9673(00)90646-0