职业与健康 ›› 2026, Vol. 42 ›› Issue (11): 1491-1496.

• 论著—实验·监测与检验 • 上一篇    下一篇

改性固相萃取/气相色谱质谱法测定食用油中16种多环芳烃

董新凤, 冯佩, 吴命君, 杨立学   

  1. 石家庄市疾病预防控制中心石家庄市化学毒物检测及风险预警技术创新中心, 河北 石家庄 050011
  • 收稿日期:2025-08-27 修回日期:2025-09-22 出版日期:2026-06-01 发布日期:2026-06-10
  • 作者简介:董新凤,女,副主任技师,主要从事理化分析工作。
  • 基金资助:
    河北省医学科学研究课题(20231706)

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

摘要:

目的 建立一种改性固相萃取/气相色谱质谱法同时检测食用油中16种多环芳烃的新方法。方法 样品经氢氧化钾乙醇溶液皂化、正己烷提取、Eu多环芳烃柱净化,氮吹浓缩后上气相色谱质谱仪分析测试。结果 在选定条件下,16种多环芳烃分离度良好,在10~500 ng/mL范围内线性关系良好,相关系数(r)均>0.994;检出限为0.15~1.0 μg/kg,定量限为0.5~3.3 μg/kg;3个浓度加标回收率为60.48%~107.30%,相对标准偏差(retative standard deviation,RSD)为1.87%~12.30%。结论 所建立的方法数据可靠、方法灵敏度高,适用于食用油中多环芳烃的测定。

关键词: 食用油, 多环芳烃, 固相萃取, 提取, 检测, 气相色谱质谱联用仪

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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