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Liquid Crystals and their Application
Russian Journal Zhidkie kristally i ikh prakticheskoe ispol'zovanie Жидкие кристаллы и их практическое использование |
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Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2011, 1, 85—94. |
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Gas Chromatographic Sorption of Organic Compounds by Liquid Crystal Sorbent «MEAB – Methyl-β-Cyclodextrin»
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L. A.Onuchak, T. S. Burmatnova, R. Yu. Popov, Yu. G. Kuraeva, E. A. Spiryaeva
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Author affiliations
Samara State University
443011 Samara, st. Ac. Pavlova, 1.
E-mail: onuchak@ssu.samara.ru
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Abstract
Mesomorphic, sorption and selective properties of stationary phase, based on nematic 4-metoxy-4'-etoxyazoxybenzene and chiral macrocyclic additive – methyl-β-cyclodextrin (10,07 mas. %) were investigated. Low values of para-meta- selectivity and absence of enanthyoselectivity for this system were marked for both straight (N) and reverse (N*) temperature processes. Thermodynamic sorption functions analysis showed that the investigated stationary phase could be described by strong «liquid crystal – macrocycle» interaction.
Keywords: liquid crystal, chiral macrocycle, composite sorbents, gas chromatography, selectivity, enanthyselectivity
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