食品科学 ›› 2011, Vol. 32 ›› Issue (18): 268-273.doi: 10.7506/spkx1002-6630-201118060

• 分析检测 • 上一篇    下一篇

QuEChERS-GC/MS快速检测柑橘中的50种农药残留

黄 霞1,2,宋 莹2,3,张耀海2,李云成1,2,焦必宁1,2*   

  1. 1. 西南大学食品科学学院
    2.中国农业科学院/西南大学柑桔研究所 3.中国农业科学院农产品加工研究所
  • 出版日期:2011-09-25 发布日期:2011-09-24
  • 基金资助:
    “十一五”国家科技支撑计划项目(2007BAD47B07;2009BADB7B04);国家现代农业(柑桔)产业技术体系建 设专项;重庆市自然科学基金项目(CSTC,2009BB1136);柑桔学重庆市市级重点实验室开放基金项目(CKLC200803)

Rapid Determination of 50 Pesticide Residues in Citrus by QuEChERS-Gas Chromatography-Mass Spectrometry

HUANG Xia1,2,SONG Ying2,3,ZHANG Yao-hai2,LI Yun-cheng1,2,JIAO Bi-ning1,2,*   

  1. (1. College of Food Science, Southwest University, Chongqing 400716, China; 2. Citrus Research Institute, Chinese Academy of Agricultural Sciences, Southwest University, Chongqing 400712, China; 3. Institute of Agro-Food Sciences and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China)
  • Online:2011-09-25 Published:2011-09-24

摘要: 建立柑橘中常见的50种农药残留的气相色谱-质谱(GC-MS)检测方法。样品用乙腈快速提取、无水硫酸镁与氯化钠盐析后,经N-丙基乙二胺(PSA)填料净化,用GC-MS分析。采用选择离子监测模式(selected ion monitoring,SIM),以保留时间和特征离子定性、峰面积定量。方法的检出限(RSN=3)为0.0038~0.066mg/kg,50种农残的平均收率72.0%~118.2%,相对标准偏差1.7%~19.7%。

关键词: 柑橘, QuEChERS, 气相色谱-质谱, 多残留分析

Abstract: An analytical method for the rapid determination of 50 pesticides residues in citrus by gas chromatography-mass spectrometry (GC-MS) with QuEChERS was established in a selected ion-monitoring (SIM) mode. The pesticide residues in samples were extracted into acetonitrile and salted out by anhydrous MgSO4 and NaCl. Then, the pesticide residues in the supernatant after clean-up on N-propyl ethylenediamine (PSA) cartridge were subjected to GC-MS analysis. Under the optimal conditions, the limits of detection (RSN = 3) of the established method were in the range of 0.0038-0.066 mg/kg, and the average recovery rates (n=6) for 50 pesticide residues in a blank sample were 72.0%-118.2% with a relative standard deviations (RSDs) of 1.7%-19.7%.

Key words: citrus, QuEchERS, gas chromatography-mass spectrometry (GC-MS), multiple pesticide residue analysis

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