Rapid determination of polycyclic-aromatic-hydrocarbons in rice by gas chromatography-mass spectrometry using dispersive solid phase extraction
A new analytical method was developed for the determination of 16 polycyclic-aromatichydrocarbons(PAHs) in rice samples by gas chromatography-mass spectrometry(GC-MS). The target analytes in samples were extracted with the solution of acetonitrile(ACN), purified using dispersive solid phase extraction, detected by GC-MS, and then quantified by isotope internal standard method. The method recovery percentages and relative standard deviations(RSD) were 69.1%~96.9% and 8.2%~12.7%. The method detection limit(MDL) was 0.6~3.2 μg/kg.