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  • 1 Silesian University Institute of Chemistry 9 Szkolna Street 40-006 Katowice Poland
  • | 2 Medical University of Lublin Department of Pharmacognosy 1 Chodźki Str. 20-093 Lublin Poland
  • | 3 Medical University of Lublin Department of Inorganic Chemistry 6 Staszica Street 20-081 Lublin Poland
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In a previous paper we discussed the possibility of fractionating the essential oils of different sage species by low-temperature preparative layer chromatography (PLC), followed by preparative isolation of the contents of each fraction and further analysis by GC-MS. In that way we attempted to emphasize the practical usefulness of lowtemperature planar chromatography for investigation of volatile compounds. In this study, we explore a possibility of fractionating essential oils contained in the different sage species by low-temperature analytical TLC followed by direct mass spectrometric analysis of the separated fractions. This objective can be achieved by TLC-MS with on-line transfer of the eluted fractions. The densitograms obtained from five different sage species (i.e., S. lavandulifolia, S. staminea, S. hians, S. triloba , and S. nemorosa ) are compared. Each densitogram is accompanied by mass spectra recorded for each peak. Videoscans of the chromatograms are also presented. In this way multiple fingerprints of the analyzed plant material, each comprising a densitogram and a selection of mass spectra, were obtained. Advanced chemometric treatment of these multiple fingerprints can be used to reveal statistically significant differences between the plant species. Analytical and chemotaxonomic advantages and further aspects for this kind of approach are discussed.

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