• Izolacja i identyfikacja związków naturalnych z roślin leczniczych: Bellis perennis L., Borago officinalis L., Ficaria verna Huds., Bidens tripartita L., Rubus saxatilis L., Rubus sp., Cirsium rivulare (Jacq.) All., Cirsium sp., Erigeron acris L., Erigeron annuus L., Potentilla argentea L., Lychnis flos-cuculi L., Potentilla sp.
• Analiza ilościowa i jakościowa związków naturalnych w roślinnych surowcach leczniczych

• Analiza chromatograficzna: CC, TLC, HPLC, GC, GC/MS
• Analiza spektralna: UV, IR, 1D i 2D NMR, MS

• Gudej J., Nazaruk J.: Flavonol glycosides from the flowers of Bellis perennis, Fitoterapia 72 (7), 839-840, 2001
• Olejniczak S., Ganicz K., Tomczykowa M., Gudej J., Potrzebowski J.: Structural studies of 2-(3’,4’-dihydroxyphenyl)-7-ß-D-glucopyranos-1-O-yl-8-hydroxy-chroman-4-one in the liquid and solid states by means of 2D NMR spectroscopy and DFT calculations, Journal of the Chemical Society, Perkin Transactions 2, 6, 1059-1065, 2002
• Tomczyk M., Gudej J., Sochacki M.: Flavonoids from Ficaria verna Huds., Zeitschrift für Naturforschung 57c, (5-6), 440-444, 2002
• Tomczyk M., Gudej J.: Quantitative analysis of flavonoids in the flowers and leaves of Ficaria verna Huds., Zeitschrift für Naturforschung 58c, (9-10), 762-764, 2003
• Gudej J., Tomczyk M.: Determination of flavonoids, tannins and ellagic acid in leaves from Rubus L. species, Archives of Pharmacal Research 27 (11), 1114-1119, 2004
• Nazaruk J., Jakoniuk P.: Flavonoid composition and antimicrobial activity of Cirsium rivulare (Jacq.) All. flowers, Journal of Ethnopharmacology 102 (2), 208-212, 2005
• Tomczyk M., Gudej J.: Polyphenolic compounds from Rubus saxatilis, Chemistry of Natural Compounds 41 (3), 33349-351, 2005
• Tomczykowa M., Gudej J., Majda T. Góra J.: Essential oil of Bidens tripartita L., Journal of Essential Oil Research 17 (Nov/Dec), 632-635, 2005
• Nazaruk J., Gudej J., Majda T., Góra J.: Investigation of the essential oil of Erigeron acris L. herb, Journal of Essential Oil Research 18 (Jan/Feb), 88-90, 2006
• Tomczyk M.: Secondary metabolites from Potentilla argentea, Biochemical Systematics and Ecology 34 (10), 770-773, 2006
• Wolniak M., Tomczyk M., Gudej J., Wawer I.: Structural studies of methyl brevifolincarboxylate in solid state by means of NMR spectroscopy and DFT calculations, Journal of Molecular Structure 825 (1-3), 26-31, 2006