Advanced and innovative chromatographic techniques for the study of citrus essential oils

A brief description is given of advanced chromatographic techniques currently employed in citrus essential oil analysis (the interactive use of linear retention indices and MS spectra probability matching in GC-MS; on-line heart cutting multidimensional chromatographic techniques, comprehensive GC and LC; fast GC and GC-MS; fast HPLC; HPLC-MS). A series of applications are reported, demonstrating both the valid and the potential of these methods.