湖北农业科学 ›› 2021, Vol. 60 ›› Issue (21): 103-106.doi: 10.14088/j.cnki.issn0439-8114.2021.21.024

• 检测分析 • 上一篇    下一篇

QuEChERS-气相色谱质谱法测定食用植物油中15种农药残留

张仙, 张隽娴, 胡西洲   

  1. 农业农村部食品质量监督检验测试中心(武汉),武汉 430064
  • 收稿日期:2021-07-09 出版日期:2021-11-10 发布日期:2021-11-24
  • 通讯作者: 张隽娴(1988-),女,湖北当阳人,助理研究员,硕士,主要从事农产品质量安全与标准研究,(电话)027-87381028(电子信箱)414878545@qq.com。
  • 作者简介:张 仙(1983-),女,湖北荆门人,助理研究员,硕士,主要从事农产品质量安全及风险评估工作,(电话)13797028353(电子信箱)zhangxian19832008@163.com。

Determination of 15 pesticide residues in edible vegetable oil by a QuEChERS-gas chromatography-mass spectrometry

ZHANG Xian, ZHANG Jun-xian, HU Xi-zhou   

  1. Food Quality Inspection and Testing Center of Agricultural Ministry of China(Wuhan),Wuhan 430064,China
  • Received:2021-07-09 Online:2021-11-10 Published:2021-11-24

摘要: 建立了一种QuEChERS-气相色谱质谱法同时检测植物油中15种农药残留的方法。样品提取净化采用QuEChERS法,用酸化乙腈提取,经PSA和C18基质分散净化,选择离子模式下同时测定,外标法定量。结果表明,15种农药在0.050 0~0.500 0 μg/mL线性良好,相关系数在0.995 3~0.999 3,在低、中、高3个不同浓度水平的平均加标回收率为83.4%~106.8%,相对标准偏差为2.4%~4.8%,定量限为0.030~0.088 μg/mL。该方法简便、准确、快速,可满足植物油中15种农药残留的同时检测需要。

关键词: QuEChERS, 气相色谱-质谱法, 植物油, 农药残留

Abstract: To establish a method of QuEChERS-gas chromatography-mass spectrometry for detection of the 15 kinds of pesticide residues in edible vegetable oil. The sample was extracted and purified by QuEChERS method, extracted with acidified acetonitrile, purified by PSA and C18 matrix dispersion, simultaneously measured by the selected ion mode, and quantified by external standard method. The results showed that the good linear ranges of 15 pesticides were 0.050 0~0.500 0 μg/mL and the correlation coefficients were 0.995 3~0.999 3. The average recoveries were in the range of 83.4%~106.8%. The relative standard deviations were between 2.4% and 4.8%. The limits of quantification were in range of 0.030~0.088 μg/mL. The method is simple, accurate, and rapid, and it can meet the needs of simultaneous detection of 15 pesticide residues in vegetable oil.

Key words: QuEChERS, gas chromatography-mass spectrometry, vegetable oil, pesticide residues

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