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Chemical Composition of Volatile Oils from Leaves and Flowers of Sideritis congesta Using Direct Thermal Desorption - Two - Dimensional Gas Chromatography - Time - of - Flight Mass Spectrometry

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dc.contributor.author Özel, M.Z.
dc.contributor.author Lewis, A.C.
dc.contributor.author Gögüs, F.
dc.date.accessioned 2019-08-16T12:19:51Z
dc.date.available 2019-08-16T12:19:51Z
dc.date.issued 2008
dc.identifier.issn 0972060X (ISSN)
dc.identifier.uri http://acikerisim.pau.edu.tr:8080/xmlui/handle/11499/7323
dc.description.abstract Volatile oils from the leaves and flowers of Sideritis congesta, a plant endemic to Southern Anatolia, Turkey, were liberated using direct thermal desorption (DTD) and then analysed using comprehensive gas chromatography (GC × GC) coupled with time-of-flight mass spectrometry (TOF-MS). Two methods of thermal desorption are compared here; i) a manual direct cryo cooled on-column collection and focusing, and ii) a fully automated two stage carbon adsorbent thermal desorption system. 41 different volatile components were identified associated with plant leaves and 54 components for the flowers. A comparison of the flower volatiles resolved using the different thermal desorption methods indicated 43 common components, but with the cryo-cooled on-column method giving a slightly better determination. Major organic constituents observed from this species were Opinene (12.53–14.55 %), ß-pinene (17.15–25.34 %) and ô-cadinene (10.97–14.52 %). Results for manual and automated DTD methods are similar: both of them allow a fast plant volatile analysis without the costly and time consuming step of extraction or distillation. © 2008 Taylor & Francis Group, LLC.
dc.language.iso English
dc.relation.isversionof 10.1080/0972060X.2008.10643592
dc.subject Comprehensive gas chromatography
dc.subject Direct thermal desorption
dc.subject Sideritis congesta
dc.subject Time-of-flight mass spectrometry
dc.subject Volatiles
dc.subject Sideritis
dc.title Chemical Composition of Volatile Oils from Leaves and Flowers of Sideritis congesta Using Direct Thermal Desorption - Two - Dimensional Gas Chromatography - Time - of - Flight Mass Spectrometry
dc.type Article
dc.relation.journal Journal of Essential Oil-Bearing Plants
dc.identifier.volume 11
dc.identifier.issue 1
dc.identifier.startpage 22
dc.identifier.endpage 29
dc.identifier.index Scopus


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