食品科学 ›› 2011, Vol. 32 ›› Issue (2 ): 187-190.doi: 10.7506/spkx1002-6630-201102044

• 分析检测 • 上一篇    下一篇

高效液相色谱- 质谱法测定牛奶中6 种氨基甲酸酯农药残留

田宏哲,赵瑛博,周艳明   

  1. 沈阳农业大学分析测试中心
  • 收稿日期:2010-03-08 修回日期:2010-11-29 出版日期:2011-01-25 发布日期:2011-01-10
  • 通讯作者: 田宏哲 E-mail:tthz2@yahoo.com.cn

Simultaneous Determination of Six Carbamate Pesticide Residues in Milk by HPLC-ESI-MS/MS

TIAN Hong-zhe,ZHAO Ying-bo,ZHOU Yan-ming   

  1. Analysis and Testing Center, Shenyang Agricultrual University, Shenyang      110866, China
  • Received:2010-03-08 Revised:2010-11-29 Online:2011-01-25 Published:2011-01-10
  • Contact: TIAN Hong-zhe E-mail:tthz2@yahoo.com.cn

摘要: 为建立同时测定牛奶中6 种氨基甲酸酯类农药残留量的方法,样品经乙腈提取,Oasis HLB 固相萃取柱净化后,采用高效液相色谱- 离子阱质谱(HPLC-ESI-MS/MS)进行测定,测定条件为:C18 色谱柱分离,甲醇-0.02mol/L醋酸铵溶液梯度洗脱,多反应监测模式检测。结果表明,6 种杀虫剂的定量限为1.0~10.0μg/kg,平均添加回收率为79.21%~91.38%,相对标准偏差为3.44%~5.71%。本实验所建立的6 种杀虫剂的测定方法完全可以满足当前农药残留分析的要求。

关键词: 高效液相色谱- 电喷雾电离质谱, 杀虫剂, 氨基甲酸酯农药, 牛奶

Abstract: A high performance liquid chromatography-ion trap mass spectrometric (HPLC-ESI-MS/MS) method was developed to determine six carbamate pesticide residues in milk samples simultaneously. Samples were extracted with acetonitrile, cleaned up on an Oasis HLB-SPE column, separated on a C18 column using mixed methanol and 0.02 mol/L ammonium acetate as a mobile phase (60:40, V/V) by gradient elution, followed by multiple reaction monitoring (MRM) mode detection. The limits of quantification ranged from 1.0 to 10.0μg/kg. The average recoveries in spiked samples were between 79.21% and 91.38% with relative standard deviations from 3.44% to 5.71%. The proposed method can meet the current requirements for the analysis residual pesticides.

Key words: high performance liquid chromatography-electrospray ionization mass spectrometry, insectcide, carbamate pesticide residue, milk

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