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Ultra-performance supercritical fluid chromatography: a powerful tool for the enantioseparation of thermotropic fluorinated liquid crystals
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SYSNO ASEP 0500366 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Ultra-performance supercritical fluid chromatography: a powerful tool for the enantioseparation of thermotropic fluorinated liquid crystals Author(s) Vaňkátová, Petra (FZU-D) ORCID, RID
Kalíková, K. (CZ)
Kubíčková, A. (CZ)Number of authors 3 Source Title Analytica Chimica Acta. - : Elsevier - ISSN 0003-2670
Roč. 1038, Dec (2018), s. 191-197Number of pages 7 s. Language eng - English Country NL - Netherlands Keywords supercritical fluid chromatography ; enantioseparation ; liquid crystalline materials ; chiral fluorinated liquid crystals ; amylose Subject RIV CB - Analytical Chemistry, Separation OECD category Analytical chemistry Institutional support FZU-D - RVO:68378271 UT WOS 000445895500023 EID SCOPUS 85049438308 DOI 10.1016/j.aca.2018.07.001 Annotation A supercritical fluid chromatography method for the enantioseparation of orthoconic antiferroelectric liquid crystals is reported. The effects of alkoxy spacer length and fluorine presence and position on the phenyl ring on chromatographic behaviour were investigated. Baseline enantioseparation of all compounds was achieved using simple mobile phases consisting of carbon dioxide and alcohol with amylose tris(3,5-dimethylphenylcarbamate) as chiral stationary phase. The analysis times ranged from 2 to 4 and from 4 to 7 min for most samples with methanol and propane-2-ol, respectively. The effect of cosolvent type on the enantioseparation was assessed and partial complementarity of methanol and propane-2-ol was observed. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2019
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