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作者:

Meng, Weiyi (Meng, Weiyi.) | Gu, Jin (Gu, Jin.) | Jiang, Rui (Jiang, Rui.) | Zhang, Qing (Zhang, Qing.) | Zhao, Wentao (Zhao, Wentao.) | Ma, Yanhong (Ma, Yanhong.) | Zhao, Yixin (Zhao, Yixin.) | Li, Yingying (Li, Yingying.) | Guo, Wenping (Guo, Wenping.)

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摘要:

In this paper, a gas chromatography-tandem mass spectrometry (GC-MS) method was established for the determination of 18 phthalates, 16 polycyclic aromatic hydrocarbons and 7 polychlorinated biphenyls in edible oils. The sample was ultrasonically extracted with acetonitrile saturated by n-hexane, and the extract was cleaned up by solid phase extraction (SPE), separated on a DB-5 capillary column, ionized by electron impact and quantitated in the selective reaction monitor (SRM) mode. Good linearity was observed for all the analytes in the concentration ranges tested (0.04-2 mg/kg for phthalate acid esters, 1-40 mg/kg for diisodecyl phthalate (DINP), and 0.01-0.4 mg/kg for polycyclic aromatic hydrocarbons and polychlorinated biphenyls), with correlation coefficients more than 0.99. The limits of detection (LODs)were 8 μg/kg for DINP and 0.08-2 μg/kg for the other compounds. The recoveries ranged from 62.7% to 128.3%, with relative standard deviations (RSDs) of 1.1% to 13.6% (n = 6). The method was sensitive, accurate, simple, rapid and thus suitable for the detection of phthalate acid esters, polycyclic aromatic hydrocarbons and polychlorinated biphenyls in edible oils. © 2020, China Food Publishing Company. All right reserved.

关键词:

Aromatization Esters Gas chromatography Gas oils Hexane Ionization of gases Mass spectrometry Mineral oils Organic pollutants Phase separation Polychlorinated biphenyls Polycyclic aromatic hydrocarbons

作者机构:

  • [ 1 ] [Meng, Weiyi]China Meat Research Center, Beijing; 100068, China
  • [ 2 ] [Gu, Jin]China Meat Research Center, Beijing; 100068, China
  • [ 3 ] [Jiang, Rui]China Meat Research Center, Beijing; 100068, China
  • [ 4 ] [Zhang, Qing]College of Life Science and Bio-engineering, Beijing University of Technology, Beijing; 100020, China
  • [ 5 ] [Zhao, Wentao]China Meat Research Center, Beijing; 100068, China
  • [ 6 ] [Ma, Yanhong]China Meat Research Center, Beijing; 100068, China
  • [ 7 ] [Zhao, Yixin]China Meat Research Center, Beijing; 100068, China
  • [ 8 ] [Li, Yingying]China Meat Research Center, Beijing; 100068, China
  • [ 9 ] [Guo, Wenping]China Meat Research Center, Beijing; 100068, China

通讯作者信息:

  • [ma, yanhong]china meat research center, beijing; 100068, china

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来源 :

Food Science

ISSN: 1002-6630

年份: 2020

期: 4

卷: 41

页码: 300-306

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