Enantiomeric analysis of limonene and carvone by direct introduction of aromatic plants into multidimensional gas chromatography

► Solid plant material is introduced into multidimensional gas chromatography. ► No sample pretreatment is required and racemization risk is precluded. ► Stereodifferentiation of chiral terpenes is achieved in the main column. ► Identical enantiomeric excesses are obtained for plant materials and essential oils.