title: On the calculation of Gibbs energy corresponding to enantioselective interactions at a direct HRGC separation of enantiomers.
abstract: A novel procedure is proposed for the calculation of Gibbs energy corresponding to enantiospecific interactions of 2-(2, 4-dinitrophenoxy)-, 2-phenoxy-, and 2-halogen-n-pentane enantiomers with a beta-cyclodextrin (ChirasilDex) stationary phase under gas chromatographic conditions. This energy is calculated from retention data as a difference between the Gibbs energy of an enantiomer and its corresponding achiral congener. The procedure for the determination of 2-(2,4-dinitrophenoxy)-, 2-phenoxy- and 2-halogen- n-pentane achiral congener retention data is discussed in detail.
authors.affiliation: Department of Analytical Chemistry, Faculty of Chemical Technology, Slovak University of Technology, Bratislava, Slovak Republic.
authors.forename: J
authors.initials: J
authors.lastname: Krupcík
authors.forename: I
authors.initials: I
authors.lastname: Spánik
authors.forename: P
authors.initials: P
authors.lastname: Oswald
authors.forename: P
authors.initials: P
authors.lastname: Májek
authors.forename: I
authors.initials: I
authors.lastname: Skacáni
authors.forename: P
authors.initials: P
authors.lastname: Sandra
mesh_terms: D002849:Chromatography, Gas; D010420:Pentanes / Q000737:chemistry; D013237:Stereoisomerism; D013816:Thermodynamics
chemical_list: D010420:Pentanes