HUBEI AGRICULTURAL SCIENCES ›› 2022, Vol. 61 ›› Issue (23): 160-164.doi: 10.14088/j.cnki.issn0439-8114.2022.23.032

• Detection Analysis • Previous Articles     Next Articles

Evaluation of pretreatment methods for determination of pesticide residues in peanut oil by GC-MS/MS

ZHOU Wei-jing, HOU Jing, XU Wei, WANG Shu   

  1. Wuhan Institute for Food and Cosmetic Control,Wuhan 430014,China
  • Received:2021-10-15 Online:2022-12-10 Published:2023-01-27

Abstract: The extraction methods for the determination of pesticide residues in peanut oil by gas chromatography-tandem mass spectrometry (GC-MS/MS) were compared and optimized. The purification effects of four dispersive adsorbents including C18, primary secondary amine (PSA), C18 zirconia-coated silica(Z-Sep+) and Enhanced Matrix Removal-Lipid(EMR-Lipid) were evaluated. The results showed that the recovery was the highest when the sample was extracted directly with acetonitrile. When the ratio of extraction solvent to sample was increased, the recovery rate was increased. PSA, Z-Sep+ and EMR-Lipid can reduce the interference of the matrix to a certain extent, but each adsorbent had its own characteristics and needs to be selected according to the actual situation of the detected compounds.

Key words: QuEChERS, pesticide residues, peanut oil, preparation method

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