New asymmetrical per-substituted cyclodextrins (2-O-methyl-3-O-ethyl- and 2-O-ethyl-3-O-methyl-6-O-t-butyldimethylsilyl-β-derivatives) as chiral selectors for enantioselective gas chromatography in the flavour and fragrance field
Keywords: Enantiomer separation; Capillary GC; Cyclodextrin derivatives; 2/3 asymmetrical substitution pattern; Flavour and fragrance field; Essential oils