“…Essential oil analysis by GC-MS and TLC methods revealed as a main compounds, bisabolol oxide A, bisabolone oxide, bisabolol oxide B, chamazulene, spathulenol and farnesene. Murti et al (2012), besides the mentioned substances, also presented sesquiterpens, apigenin, luteolin, quercetin, umbelliferone and en-yndicycloether as chemical components of chamomile. Also, Euphrasia contains a lot of chemical compounds represented mainly by phenolic compounds (for exexample, chlorogenic, caffeic acids, quercetin-3-Orutinoside (9) and apigenin),organic acids (for example, citric acid , quinic acid , acetic acid ), sterols (cholesterol , β-Sitosterol) and fatty acids (for example, myrystic, palmitic, docosahexaenoic) determined by different chromatographic methods (Teixeira and Silva, 2013).…”