Journal
PHYTOCHEMICAL ANALYSIS
Volume 30, Issue 2, Pages 193-197Publisher
WILEY
DOI: 10.1002/pca.2804
Keywords
essential oil; gas chromatography-mass spectrometry; microwave-assisted hydrodistillation; periodic mesoporous organosilica Ionic liquid; solid-phase microextraction
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Introduction Research on the volatile oil composition of Thymus kotschyanus Boiss was conducted by applying mesoporous organosilica based on alkylimidazolium ionic liquid (PMO-IL) as a fibre coating material via a method referred to as microwave-assisted headspace solid-phase microextraction (MA-HS-SPME). Methodology This technique entails microwave irradiation of the sample and collection of the volatile sample components. These components are further introduced into a gas chromatography-mass spectrometry (GC-MS) injection port for further analysis. A simplex method was used for the optimisation of three different parameters affecting the efficiency of the extraction. Conclusion The MA-HS-SPME method proved to be the most suitable technique in oil determination and extraction from Thymus kotschyanus owing to its advantageous aspects of cost effectiveness, simplicity and solvent independence.
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