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J Chromatogr A

Title:		Evaluation of three headspace sorptive extraction coatings for the determination of volatile terpenes in honey using gas chromatography-mass spectrometry
Author(s):		Cacho JI; Campillo N; Vinas P; Hernandez-Cordoba M;
Address:		"Department of Analytical Chemistry, Faculty of Chemistry, Regional Campus of International Excellence 'Campus Mare Nostrum', University of Murcia, E-30100 Murcia, Spain. Department of Analytical Chemistry, Faculty of Chemistry, Regional Campus of International Excellence 'Campus Mare Nostrum', University of Murcia, E-30100 Murcia, Spain. Electronic address: hcordoba@um.es"
Journal Title:		J Chromatogr A
Year:		2015
Volume:		20150428
Issue:
Page Number:		18 - 24
DOI:		10.1016/j.chroma.2015.04.041
ISSN/ISBN:		1873-3778 (Electronic) 0021-9673 (Linking)
Abstract:		"Headspace sorptive extraction (HSSE) was used to preconcentrate seven monoterpenes (eucalyptol, linalool, menthol, geraniol, carvacrol, thymol and eugenol) for separation by gas chromatography and mass spectrometry (GC-MS). Three commercially available coatings for the stir bars, namely Polydimethylsiloxane (PDMS), polyacrilate (PA) and Ethylene glycol-silicone (EG-Silicone), were tested, and the influential parameters both in the adsorption and the thermal desorption steps were optimized. PDMS provided the best sensitivity for linalool, geraniol, menthol and eucalyptol, whereas EG-Silicone was best for extracting the phenolic monoterpenes studied. Considering the average obtained slopes from all compounds, PDMS pointed as the best option, and the analytical characteristics for the HSSE-TD-GC-MS method using this coating were obtained. Quantification of the samples was carried out by matrix-matched calibration using a synthetic honey. Detection limits ranged between 0.007 and 0.032 ng g(-1), depending on the compound. Twelve honey samples of different floral origins were analyzed using the HSSE-GC-MS method, the analytes being detected at concentrations up to 64 ng g(-1)"
Keywords:		Adsorption Food Analysis/instrumentation/*methods *Gas Chromatography-Mass Spectrometry Honey/*analysis Silicones/chemistry Terpenes/*analysis Gas chromatography-mass spectrometry (GC-MS) Headspace sorptive extraction (HSSE) Honey Monoterpenes;
Notes:		"MedlineCacho, J I Campillo, N Vinas, P Hernandez-Cordoba, M eng Research Support, Non-U.S. Gov't Netherlands 2015/05/11 J Chromatogr A. 2015 Jun 19; 1399:18-24. doi: 10.1016/j.chroma.2015.04.041. Epub 2015 Apr 28"