湖北农业科学 ›› 2020, Vol. 59 ›› Issue (21): 147-150.doi: 10.14088/j.cnki.issn0439-8114.2020.21.031

• 检测分析 • 上一篇    下一篇

QuEChERS-气相色谱法测定柑橘皮中19种有机磷农药残留

张仙, 胡西洲, 彭西甜, 王小飞   

  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:2020-07-09 出版日期:2020-11-10 发布日期:2020-12-21
  • 通讯作者: 胡西洲,男,湖北监利人,副研究员,博士,主要从事农产品质量安全及风险评估工作,(电话)027-87389808(电子信箱)huxizhou@163.com。
  • 作者简介:张 仙(1983-),女,湖北荆门人,助理研究员,硕士,主要从事食品中农药残留检测工作,(电话)13797028353(电子信箱)zhangxian19832008@163.com;
  • 基金资助:
    全国粮食产品(稻米、小麦和马铃薯)质量安全专项

Determination of 19 organophosphorus pesticide residues in Citrus reticulata peel based on QuEChERS-GC method

ZHANG Xian, HU Xi-zhou, PENG Xi-tian, WANG Xiao-fei   

  1. Food Quality Inspection and Testing Center of Agricultural Ministry of China(Wuhan), Wuhan 430064, China
  • Received:2020-07-09 Online:2020-11-10 Published:2020-12-21

摘要: 建立了一种QuEChERS结合气相色谱法同时测定柑橘(Citrus reticulata)皮中19种有机磷农药残留的方法。样品经酸化乙腈提取、QuEChERS法净化,火焰光度检测器检测,外标法定量。结果表明,19种有机磷农药在0.050 0~0.500 0 μg/mL线性关系良好,相关系数在0.994 1~0.998 9,平均加标回收率为80.4%~100.2%,相对标准偏差为1.2%~4.8%,定量限为0.010 0~0.020 4 μg/mL。该方法简便、灵敏度高,适用于柑橘皮中19种有机磷农药残留的测定。

关键词: QuEChERS, 气相色谱, 柑橘(Citrus reticulata)皮, 有机磷农药残留

Abstract: To establish a method of QuEChERS combined with GC for detection of the 19 kinds of pesticide residues in Citrus reticulata peel. The sample were extracted by acidified acetonitrile, purified by QuEChERS method, detected by flame photometric detector and quantified by external standard method. The results showed that the good linear ranges of 19 organophosphorus pesticides were 0.050 0~0.500 0 μg/mL and the correlation coefficients were 0.994 1~0.998 9. The average recoveries were in the range of 80.4%~100.2%. The relative standard deviations were between 1.2% and 4.8%. The limits of quantification were in range of 0.010 0~0.020 4 μg/mL. The method is simple, sensitive and can be used for determination of 19 organophosphorus pesticides in Citrus reticulata peel.

Key words: QuEChERS, GC, Citrus reticulata peel, organophosphorus pesticide residues

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