关键词: 邻苯二甲酸酯（PAEs）, 河蚌, 气质联用, PAEs, freshwater mussel meat, GC-MS

Abstract: The freshwater mussel samples were extracted with ethyl acetate solvent. Then the samples were purified by solid-phase extraction with Florisil column. After filtration, the filtrate was concentrated with nitrogen and concentrated with n-hexane. The content was determined by gas chromatography-mass spectrometry (GC-MS) with isotope internal standard method. The results showed that: PAEs had a good linear relationship between 0.10-2.00 mg/L, while the correlation coefficient r were all above 0.99. The average recoveries ranged from 73.1% to 94.3% with RSD that less than 9.3% by three level of spiked concentrations. The limit of detection were ranged from 1.2 to 3.9 μg/kg. The method had the advantages of simple pretreatment, high sensitivity and high accuracy, and can be satisfied in requirement of detecting phthalate residues in freshwater mussel meat.