SORPTION PROPERTIES OF THE MIXED STATIONARY PHASE ”POLYDIMETHYLSILOXANE-/beta-CYCLODEXTRIN” IN GAS CHROMATOGRAPHY



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Abstract

Sorption and selective properties of the mixed stationary phase based on polydimethylsiloxane and methylated-beta-cyclodextrin were studied by gas chromatographic method in the temperature range 60–180С. It is also established that introduction of macrocyclic adding in polymeric immovable phase results in increasing sorption of organic compounds of different classes (apart from n-alkanes C6-C10 and cyclogegsan) and showing of enantioselectivity, more pronounced for cyclic compounds with polar substituents. A greater role of entropy factors acting in the mixed polymer phase on the sorption of sorbates redistribution

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V.I. Platonov

Samara State University

Author for correspondence.
Email: morenov.sv@ssau.ru

J.G. Kuraeva

Samara State University

Email: morenov.sv@ssau.ru

L.A. Onuchak

Samara State University

Email: morenov.sv@ssau.ru

D.M. Kazurov

Samara State University

Email: morenov.sv@ssau.ru

I.S. Goncharova

Samara State University

Email: morenov.sv@ssau.ru

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Copyright (c) 2012 Platonov V., Kuraeva J., Onuchak L., Kazurov D., Goncharova I.

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