Тези доповідей, матеріали конференцій
Постійне посилання на розділhttps://dspace.nuft.edu.ua/handle/123456789/7373
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10 результатів
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Документ Determination of fatty acids profile of sunflower oil samples by NMR 1H spectroscopy(2018) Kovaleva, Svetlana; Mazur, Larisa; Hutsalo, InnaДокумент Determination of Fatty Acid Profile of Sunflower Oil Samples by NMR 1H Spectroscopy(2018) Kovaleva, Svetlana; Mazur, Larisa; Miroshnikov, Oleg; Hutsalo, InnaSunflower oil with a high content of oleic acid (Omega-9) and a sufficiently low content of polyunsaturated linoleic acid (Omega-6) is characterized by a lower nutritional value but greater chemical stability at high temperatures and in the presence of oxidizing agents, therefore, it has several advantages for the food and chemical industries, and also as a raw material for the production of biofuels. The determination of the TAG composition o f oil is very important, because due to selection there is a large number o f sunflower varieties. The spectra o f oil samples extracted from seeds o f various sunflower varieties were investigated by NMR 1H spectroscopy to determine fatty acids composition. This method based on estimation and comparison the proton integral intensities of allylic and bis-allylic CH2 groups with intensity o f glycerol protons that allows to determine the amounts o f these unsaturated fatty acids. Each oil sample obtained has its individual TAG profile determining its physicochemical properties and nutritional value. Method 1H-NMR spectroscopy is rapid and non-destructive, so it is perspective for determination o f oil fatty acid composition.Документ Synthesis of 1,2-dihydrothieno-1λ5-[2,4,1]oxazaphosphine(2018) Kovaleva, Svetlana; Mazur, Larisa; Zinchenko, NataliaДокумент Synthesis of Six-Membered Thiophene-Annelated Heterocycle Containing P and N atoms(2017) Kovaleva, Svetlana; Simurova, Natalia; Mazur, LarisaДокумент Determination of Sunflower Oil Oxidation Products by NMR 1H Spectroscopy(2017) Kovaleva, Svetlana; Mazur, LarisaДокумент Synthesis of Dihydropyrimidine Derivatives by Biginelli's Reaction in student Workshops on Organic Chemistry(2017) Simurova, Natalia; Kovaleva, Svetlana; Mazur, LarisaIn classical student workshops, the attention paid to the synthesis of heterocyclic compounds is very little. This is due to the complexity and duration of most of these syntheses, the low availability of the initial reagents, the difficult isolation and purification the reaction products. Biginelli's reaction, as a method of synthesis of dihydropyrimidones, is attractive to be used in the student workshop on chemistry due to the simple procedure of synthesis, as well as a possibility to vary the reaction conditions and select initial reagents to introduce substituents that may be easily transformed to various functional groups.. Students cannot only get acquainted with the basic experimental methods, but also learn how to apply theoretical knowledge in practice, including monitoring of reactions and analyzing organic compounds by physico-chemical methods.Документ Development of the method of non-destructive analysis of heavy metals in the raw material that contains carbohydrates(2016) Mayboroda, Elena; Mazur, LarisaThe effect of specific carbohydrates (matrices) on the results of analysis of microelement in the feedstock has been investigated. Some samples of carbohydrates (mono-, di- and polysaccharides), containing various amounts of salts Cd, Zn, Pb and Hg, have been studied.Документ Bioactive polymeric composites modified by poly-N-vinilpyrrolidone(2005) Grigorieva, M.; Galatenko, Natalia; Mazur, Larisa; Zakashun, Tatiana; Mnyshenko, TatianaThe polyurethane composites were modified by poly-N-vinilpyrrolidonein order to develop a depot form for anti-narcotic medication Antaxone. The sorption properties of polyurethane composites with differentpoly-N-vinilpyrrolidone content were determined. By using IR spectroscopy, the interactions between polyurethane matrix, poly-N-vinilpyrrolidone and Antaxone were studied.Документ Bioactive polymeric compositesfor medical applications(2005) Grigorieva, M.; Galatenko, Natalia; Mazur, Larisa; Zakashun, Tatiana; Mnyshenko, TatianaThe polyurethane compositeswere modifiedbypolyvinylpyrrolidonein order to develop adepot form for anti-narcotic medication Antaxone. The sorption properties of polyurethane composites with differentpolyvinylpyrrolidonecontent were examined. By using IR spectroscopy, the interactions between polyurethane matrix, polyvinylpyrrolidone and Antaxonewere studied. The finding of the study may be used in developing theoretical and practical approaches to development of polymeric depot forms of narcotic drug antagonist.Документ The synthesis of the new polymeric drug form based on hydrophilic bloc-copolyurethane(2006) Mazur, Larisa; Galatenko, Natalia; Rozhnova, Rita; Drozdova, ValentinaThe new polymeric drug form based on hydrophilic bloccopolyurethane containing the elements of copolymer of N-vinylpyrrolidone and vinyl alcohol have been synthesized. The possibility of chemical immobilization amizonum on a polyurethane carrier was investigated on example of model reaction amizonum with phenylisocyanate.