title: Rapid analysis of Achillea tenuifolia Lam essential oils by polythiophene/hexagonally ordered silica nanocomposite coating as a solid-phase microextraction fibre.
abstract: In this work, a highly porous fibre coated with polythiophene/hexagonally ordered silica nanocomposite (PT/SBA-15) was prepared and used for extraction of essential oils with microwave-assisted distillation headspace solid phase microextraction (MA-HS-SPME) method. The prepared nanomaterials were immobilised on a stainless steel wire for fabrication of the SPME fibre. Using MA-HS-SPME followed by GC-MS, 24 compounds were separated and identified in Achillea tenuifolia, which mainly included limonene (28.6%), α-cadinol (12.7%), borneol (6.7%), caryophyllene oxide (3.2%), bornyl acetate (4.3%), camphene (3.2%) and para-cymene (2.3%). The experimental results showed that the polythiophene/hexagonally ordered silica nanocomposite fibres were suitable for the semi-quantitative study of the composition of essential oils in plant materials and for monitoring the variations in the volatile components of the plants.
authors.affiliation: a Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences , Tabriz , Iran.
authors.forename: Marzieh
authors.initials: M
authors.lastname: Piryaei
authors.forename: Mir Mahdi
authors.initials: MM
authors.lastname: Abolghasemi
authors.forename: Hossein
authors.initials: H
authors.lastname: Nazemiyeh
mesh_terms: D031162:Achillea / Q000737:chemistry*; D053761:Nanocomposites; D009822:Oils, Volatile / Q000032:analysis*; D010938:Plant Oils / Q000032:analysis*; D011108:Polymers; D012822:Silicon Dioxide; D052617:Solid Phase Microextraction / Q000379:methods*; D013876:Thiophenes
chemical_list: D009822:Oils, Volatile; D010938:Plant Oils; D011108:Polymers; C509969:SBA-15; D013876:Thiophenes; C066730:polythiophene; D012822:Silicon Dioxide
keywords: Achillea tenuifolia; essential oil; hexagonally ordered silica nanocomposite; microwave-assisted extraction; polythiophene; solid-phase microextraction (SPME)