The article presents the results of research into component composition of raw calendula's essential oil. The study was conducted by gas chromatography mass spectrophotometry method under the following conditions: column -CPWax58FFAPCB 24,5 mm x 250 mm x 0,20 mm nominal, the mobile-phase-He (helium), speed-column mobile phase -1.0 ml /min, volume sample injection -5 mkl; resolutions (5:1), in the Split, high-boiling chamber -220°C, detector temperature 275°C; Aux-200°C, column temperature 70°C gradually increased from 10°C / min to 250°C, maintained to the end of analysis temperature regime (250°C) for 5 min. muurololnaftalenol-8.522%.In addition, it was ascertained that in different parts of the world calendula's essential oils differ from each other in qualitative composition and quantitative components.
UDC CODE & KEYWORDSUDC: 615.074 Calendula officinalis Flower Uzbekistan Gazochromatomass -spectrophotometry Essential oils Tashkent pharmaceutical institute, Tashkent, Uzbekistan
The article studies the financial market in the context of the modern approach to the development of the secondary market in Uzbekistan. The author explores the main problems in the development of the secondary market, and also offers a new practical approach to the development of methods to eliminate existing problems. The achieved scientific results allow us to formulate conceptual approaches to the study of the financial market as an object of state regulation.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.