Počet záznamů: 1  

Chiral HPLC for a study of the optical purity of new liquid crystalline materials derived from lactic acid

  1. 1.
    0435779 - FZÚ 2015 RIV GB eng J - Článek v odborném periodiku
    Vojtylová, Terézia - Kašpar, Miroslav - Hamplová, Věra - Novotná, Vladimíra - Sýkora, D.
    Chiral HPLC for a study of the optical purity of new liquid crystalline materials derived from lactic acid.
    Phase Transitions. Roč. 87, č. 8 (2014), s. 758-769. ISSN 0141-1594. E-ISSN 1029-0338
    Grant CEP: GA ČR GA13-14133S
    Institucionální podpora: RVO:68378271
    Klíčová slova: lactic acid derivative * smectic phase * high performance liquid chromatography * chiral separation
    Kód oboru RIV: CB - Analytická chemie, separace
    Impakt faktor: 0.954, rok: 2014
    http://www.tandfonline.com/doi/abs/10.1080/01411594.2014.893344#.VGxWfVeNrcs

    New liquid crystalline (LC) materials were prepared by derivatization of lactic acid. Mesomorphic properties were studied and the presence of the SmA*–SmC* or exhibit the twist grain boundary (TGB) phases. The potential of high-performance liquid chromatography (HPLC) to separate enantiomers or diastereoisomers was evaluated. Two different brands of commercial chiral sorbents, both based on modified silica with derivatized polysaccharide. The optimized chiral HPLC method provided a baseline separation of the individual enantiomers for the LC material containing one chiral center. In the case of the more complex compound with two asymmetric carbon atoms, partial separation was reached.
    Trvalý link: http://hdl.handle.net/11104/0239591

     
     
Počet záznamů: 1  

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