zhpsЖурнал прикладной спектроскопииZhurnal Prikladnoii Spektroskopii0514-7506B. I. Stepanov Institute of Physics of the National Academy of Scienceszhps-840Research ArticleАННОТАЦИИ АНГЛОЯЗЫЧНЫХ СТАТЕЙABSTRACTS ENGLISH-LANGUAGE ARTICLESИсследование эфирных масел эвкалипта и Pinus halepensis методами диэлектрической спектроскопии и газовой хроматографии-масс-спектрометрииInvestigation of the Physical Properties of Eucalyptus and Pinus halepensis Essential Oils Using Dielectric Spectroscopy and Gas Chromatography-Mass SpectrometryHarrouzO.HarrouzO.

Уаргла.

Ouargla.

omar47203@gmail.comFrenzelF.FrenzelF.

04103 Лейпциг.

04103 Leipzig.

MosbahO.MosbahO.TerrahS. M.TerrahS. M.SabiF. Z.SabiF. Z.SahilaA.SahilaA.ZekriN.ZekriN.KremerF.KremerF.

04103 Лейпциг.

04103 Leipzig.

Университет Орана; ENSUniversity Oran, Laboratory of Material Physics; ENSЛейпцигский университетUniversity of Leipzig, Faculty of Physics and GeosciencesУниверситет ОранаUniversity Oran, Laboratory of Material Physics202129052021883505(1)-505(6)Copyright © Harrouz O., Frenzel F., Mosbah O., Terrah S.M., Sabi F.Z., Sahila A., Zekri N., Kremer F., 20212021Harrouz O., Frenzel F., Mosbah O., Terrah S.M., Sabi F.Z., Sahila A., Zekri N., Kremer F.Harrouz O., Frenzel F., Mosbah O., Terrah S.M., Sabi F.Z., Sahila A., Zekri N., Kremer F.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://zhps.ejournal.by/jour/article/view/840

Методы газовой хроматографии-масс-спектрометрии и диэлектрической спектроскопии использованы для характеризации термодинамических свойств эфирных масел, извлеченных из двух основных источников возгорания лесов в Средиземноморье, а именно листьев эвкалипта и игл сосны алеппской. Эти масла представляют собой летучие органические компоненты, которые по-разному проявляются при пожаре. Частоты релаксации, определенные по пику мнимых спектров диэлектрической проницаемости с использованием эмпирического закона Гавриляка-Негами, выявили зависимость Аррениуса от температуры. Получены энергии активации: ~4.13 кДж/моль для обоих видов, ~1.27 и 2.15 кДж/моль для эфирных масел сосны алеппской и эвкалипта. Качественные и количественные различия в составе эфирных масел листьев эвкалипта и игл сосны подтверждаются с помощью измерений методом газовой хроматографии-масс-спектрометрии.

The gas chromatography-mass spectrometry and dielectric spectroscopy techniques are used to characterize the thermodynamic properties of the essential oils extracted from two main Mediterranean wildland fuels, namely eucalyptus leaves and Pinus halepensis needles. These oils are assumed to be representative of the fuels organic volatile components that exhibit different fire behaviors. The relaxation frequencies determined from the peak of the imaginary permittivity spectra using the Havriliak-Negami empirical law revealed the Arrhenius dependence on temperature. Two activation energies are obtained: the first is around 4.13 kJ /mol for both species, and the second activation energy is around 1.27 kJ/mol for the Pinus halepensis essential oil and around 2.15 kJ/mol for the eucalyptus essential oil. Qualitative and quantitative composition differences are observed with GC-MS measurements for eucalyptus leaves and Pinus halepensis needles essential oils.

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The authors declare that there are no conflicts of interest present.