色谱 ›› 2016, Vol. 34 ›› Issue (9): 880-887.DOI: 10.3724/SP.J.1123.2016.05009

• 研究论文 • 上一篇    下一篇

超高效液相色谱-四极杆-飞行时间质谱法快速筛查农药制剂中非法添加的杀虫剂

陈建波, 马琳, 黄兰淇, 吴爱娟, 占绣萍, 赵莉   

  1. 上海市农业技术推广服务中心, 上海 201103
  • 收稿日期:2016-05-12 出版日期:2016-09-08 发布日期:2016-08-26
  • 通讯作者: 赵莉
  • 基金资助:

    上海市农委科技攻关项目(2015-4-6).

Rapid screening of illegally added insecticides in pesticide formulations by ultra performance liquid chromatography-quadrupole-time of flight mass spectrometry

CHEN Jianbo, MA Lin, HUANG Lanqi, WU Aijuan, ZHAN Xiuping, ZHAO Li   

  1. Shanghai Agriculture Technical Extension Service Center, Shanghai 201103, China
  • Received:2016-05-12 Online:2016-09-08 Published:2016-08-26
  • Supported by:

    Shanghai Agricultural Committee Projects for Science and Technology (No. 2015-4-6).

摘要:

建立了农药制剂中48种非法添加杀虫剂的超高效液相色谱-四极杆-飞行时间质谱(UPLC-Q-TOF MS)快速筛查方法。可湿性粉剂、乳油和悬浮剂3种剂型的农药制剂样品经甲醇溶解、提取后,采用UPLC-Q-TOF MS检测,48种杀虫剂在0.5~20 mg/L范围内线性关系良好,线性相关系数(R2)大于0.99。48种农药的定量限为0.05~0.4 mg/kg,检出限为0.01~0.2 mg/kg,低、中、高3个加标水平下的平均回收率为86.3%~101.5%,相对标准偏差为1.7%~4.0%。该方法快速、准确,可用于农药制剂中多种杀虫剂的快速筛查。

关键词: 超高效液相色谱-四极杆-飞行时间质谱, 快速筛查, 农药制剂, 杀虫剂

Abstract:

An analytical method was established for the rapid screening of 48 illegally added insecticides in pesticide formulations by ultra performance liquid chromatography-quadrupole-time of flight mass spectrometry (UPLC-Q-TOF MS). Three pesticide formulations of wettable powder, emulsifiable concentrate, suspension concentrate were extracted with methanol, then detected by UPLC-Q-TOF MS. The calibration curves were linear in the range of 0.5-20 mg/L with the correlation coefficients more than 0.99 for the 48 insecticides. The limits of quantification (LOQs) were 0.05-0.4 mg/kg. The limits of detection (LODs) were 0.01-0.2 mg/kg. The added recoveries for all the insecticides were 86.3%-101.5% with the relative standard deviations ranging from 1.7% to 4.0%. This method has the characteristics of rapid and accurate screening, which can meet the requirement of the determination of the 48 insecticides in pesticide formulations.

Key words: insecticide, pesticide formulations, rapid screening, ultra performance liquid chromatography-quadruple-time of flight mass spectrometry (UPLC-Q-TOF MS)

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