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Постійне посилання колекціїhttps://dspace.nuft.edu.ua/handle/123456789/7522
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4 результатів
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Документ Efficiency of gas chromatographic analysis of terpens and terpenoids of sources of aromatic substances, taking into account the polarity of the stationary phase(2020) Frolova, Natalia; Ukrainets, Anatoliy; Niemirich, Oleksandra; Melnyk, Oksana; Ustymenko, IhorThe results of the research allow us to increase the reproducibility of gas chromatographic analysis of sources of aromatic substances, as well as to choose SP, which can be interchangeable and provide a similar separation.Результати дослідження дозволяють збільшити відтворюваність газохроматографічного аналізу джерел ароматичних речовин, а також вибрати СП, який може бути взаємозамінним та забезпечити подібне розділення.Документ The method of determination of the sorption capacity of activated carbon by gas chromatography(2017) Naumenko, Ksenia; Frolova, Natalia; Petrusha, Oksana; Chepel, NataliaThe article analyzes the possibility of gas chromatography use for determination of sorption capacity of adsorbents on the example of activated carbon BAC-A. The offered method provides the use of gas chromatograph with flame-ionizing detector and with nozzle geyser that is filled with studied adsorbent. At that the isotherms of absorption of substance are constructed by manifestation curve - desorption branch of substance peak on chromatogram.As a result the isotherms of absorption of isoamylol and camphor on activated carbon were constructed and the values of specific sorption capacity for these substances were calculated.This method allows receive fast and precisely the data about absorption characteristics of adsorbent and also adapt the conditions of the study using gas chromatography to the real conditions of adsorption of substances by studied adsorbent (temperature,adsorbent concentration in vapor phase and so on).Документ The use of gas chromatography in determining the sorption capacity of the adsorbent(2017) Naumenko, Ksenia; Frolova, Natalia; Petrusha, Oksana; Chepel, NataliaThe research was carried out to determine the specific absorption capacity of activated carbon BAU-A and porous polymers such as polysorb-1, polysorb-10 and tenax BS using the gas chromatography method. It allows to predict their performance characteristics and possibilities of use in adsorption systems for the capture of aromatic substances during the concentration of juices and extractsДокумент Investigation of isolation methods of key components out of essential oils(2012) Naumenko, Ksenia; Tyshchenko (Usatiuk), Olena; Frolova, Natalia; Chepel, NataliaThe results of theoretical and experimental researches concerning the development of the isolation method of key aromatic components out of essential oils are presented. High purity key components out of the essential oils of caraway and dill have been obtained. Представлено результати теоретичних і експериментальних досліджень щодо розроблення способу виділення ключових ароматичних компонентів ефірних олій. Отримано ключові компоненти ефірних олій кмину і кропу високого ступеню чистоти.