Перегляд за Автор "Naumenko, Ksenia"

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Investigation of isolation methods of key components out of essential oils
(2012) Naumenko, Ksenia; Tyshchenko (Usatiuk), Olena; Frolova, Natalia; Chepel, Natalia
The 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.
Investigation of separation method for aromatic substances out of essential oils
(2013) Frolova, Natalia; Chepel, Natalia; Naumenko, Ksenia; Tyshchenko (Usatiuk), Olena
The paper presents the research on the development of isolation method for aromatic components out of essential oils. У роботі наведено наукові дослідження щодо розроблення способу виділення ароматичних компонентів ефірних олій.
The method of determination of the sorption capacity of activated carbon by gas chromatography
(2017) Naumenko, Ksenia; Frolova, Natalia; Petrusha, Oksana; Chepel, Natalia
The 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).
The use of gas chromatography in determining the sorption capacity of the adsorbent
(2017) Naumenko, Ksenia; Frolova, Natalia; Petrusha, Oksana; Chepel, Natalia
The 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 extracts