OCCUPATION AND HEALTH ›› 2026, Vol. 42 ›› Issue (11): 1491-1496.

• Treatise • Previous Articles     Next Articles

Determination of 16 polycyclic aromatic hydrocarbons in edible oil using modified solid-phase extraction coupled with gas chromatography mass spectrometry

DONG Xinfeng, FENG Pei, WU Mingjun, YANG Lixue   

  1. Shijiazhuang Center for Disease Control and PreventionShijiazhuang Technology Innovation Center for Chemical Poison Detection and Risk Early Warning,ShijiazhuangHeBei 050011, China
  • Received:2025-08-27 Revised:2025-09-22 Online:2026-06-01 Published:2026-06-10

Abstract:

Objective To establish a method for simultaneous detection of 16 polycyclic aromatic hydrocarbons(PAHs) in edible oil by modified solid-phase extraction/gas chromatography mass spectrometry(SPE-GC/MS). Methods The samples were saponified by potassium hydroxide ethanol solution,extracted with n-hexane,purified with Eu-PAH solid phase extraction column and concentrated with nitrogen blowing,then detected by GC-MS. Results Under the selected conditions,the separation degree of 16 PAHs was good. The method showed satisfactory linearity over the range assayed(10-500 ng/mL)(all r>0.994),and the limits of detection(LOD) ranged from 0.15-1.0 μg/kg,the limits of quantitation(LOQ) ranged from 0.5-3.3 μg/kg. The recoveries varied from 60.48% to 107.30% with relative standard deviation(RSD) of 1.87% to 12.30% at spiked levels 3. Conclusion The established method has reliable data and high sensitivity,and is suitable for the determination of PAHs in edible oils.

Key words: Edible oil, Polycyclic aromatic hydrocarbons, Solid-phase extraction, Extracte, Detecte, Gas chromatography mass spectrometry

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