title: Enantioselective comprehensive two-dimensional gas chromatography. A route to elucidate the authenticity and origin of Rosa damascena Miller essential oils.
abstract: The analysis of Bulgarian and Turkish Rosa damascena Miller essential oils was performed by flow-modulated comprehensive two-dimensional gas chromatography using simultaneous detection of the second column effluent by flame ionization and quadrupole mass spectrometric detection. Enantioselective separations were obtained by running the samples on 2,3-di-O-ethyl-6-O-tert-butyldimethylsilyl-β-cyclodextrin column as the first column and on polyethylene glycol as the second column. The determination of enantiomeric or diastereomeric excess of some terpenoic solutes is a possible route for quality or authenticity control as well as for the elucidation of the country of origin.
authors.affiliation: Institute of Analytical Chemistry, Faculty of Chemical and Food Technology, STU, Bratislava, Slovakia.
authors.forename: Ján
authors.initials: J
authors.lastname: Krupčík
authors.affiliation: Institute of Analytical Chemistry, Faculty of Chemical and Food Technology, STU, Bratislava, Slovakia.
authors.forename: Roman
authors.initials: R
authors.lastname: Gorovenko
authors.affiliation: Institute of Analytical Chemistry, Faculty of Chemical and Food Technology, STU, Bratislava, Slovakia.
authors.forename: Ivan
authors.initials: I
authors.lastname: Špánik
authors.affiliation: Research Institute for Chromatography, Kortrijk, Belgium.
authors.forename: Pat
authors.initials: P
authors.lastname: Sandra
authors.affiliation: Department of Chemistry and Biochemistry, University of Texas, Arlington, TX, USA.
authors.forename: Daniel W
authors.initials: DW
authors.lastname: Armstrong
keywords: Authenticity; Comprehensive two-dimensional gas chromatography; Enantioselective separations; Quality assessment; Rosa damascena Miller essential oil