Determination of polycyclic aromatic hydrocarbons in vegetable oils using solid-phase microextraction-comprehensive
Giorgia Purcaro1, Paul Morrison, Sabrina Moret
1Department of Food Science, University of Udine, via Marangoni 97, 33100 Udine, Italy. giopurcaro@libero.it
Abstract:
A simple and fast solid-phase microextraction method coupled with comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry was developed for analysis of polycyclic aromatic hydrocarbons in edible oil, performed directly in a hexane solution of the oil. Sampling conditions (solvent used, extraction time, extraction temperature and fiber rinsing time) were optimized by using a sample of oil fortified with a standard solution of polycyclic aromatic hydrocarbons. The method was validated by calculating linear range, correlation coefficient, accuracy, repeatability, detection limit and quantification limit. The method was applied to several oils collected from the market and directly from an olive pomace extraction plant.
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