湖北农业科学 ›› 2019, Vol. 58 ›› Issue (5): 92-95.doi: 10.14088/j.cnki.issn0439-8114.2019.05.022

• 检测分析 • 上一篇    下一篇

LC-MS测定南瓜、芦笋、水芹和番木瓜中吡唑醚菌酯残留量

陈鑫, 刘骞, 刘军, 程运斌, 沈菁   

  1. 湖北省农业科学院农业质量标准与检测技术研究所,武汉 430064
  • 收稿日期:2018-11-15 出版日期:2019-03-10 发布日期:2019-12-03
  • 通讯作者: 沈 菁(1968-),女,湖北荆州人,研究员,主要从事农药产品检测与农药登记残留试验工作,(电话)027-87389808(电子信箱)18971170373@126.com。
  • 作者简介:陈 鑫(1988-),男,湖北黄冈人,助理研究员,博士,主要从事农药登记残留试验工作,(电话)027-87389808(电子信箱)hgchenxin@163.com
  • 基金资助:
    湖北省农业科学院青年科学基金项目(2018NKYJJ19)

Determination of pyraclostrobin residues in pumpkin,asparagus,cress and papaya by LC-MS

CHEN Xin, LIU Qian, LIU Jun, CHENG Yun-bin, SHEN Jing   

  1. Institute of Quality Standard and Testing Technology for Agro-products,Hubei Academy of Agricultural Sciences,Wuhan 430064,China
  • Received:2018-11-15 Online:2019-03-10 Published:2019-12-03

摘要: 研究建立了一种快速高效测定南瓜、芦笋、水芹和番木瓜中吡唑醚菌酯残留量的方法。南瓜、芦笋、水芹和番木瓜经过乙腈提取、PSA和C18净化后,采用AQ-C18液相色谱柱分离,液相色谱质谱联用仪测定。结果表明,该方法的平均回收率为88.4%~110.0%,相对标准偏差为0~7.7%,符合农作物中农药残留分析要求。在0.01~1.00 mg/L具有良好的线性关系。该方法操作简单、快速、灵敏、准确,完全能够满足南瓜、芦笋、水芹和番木瓜中吡唑醚菌酯残留量的日常检测需要。

关键词: 吡唑醚菌酯, 液相色谱质谱(LC-MS), 检测

Abstract: A rapid and efficient method for determination of pyraclostrobin in pumpkin, asparagus, cress and papaya was established in this study. Pumpkin, asparagus, cress and papaya samples were extracted by acetonitrile, and purified by PSA and C18. Then the target compound was analyzed with liquid chromatography mass spectrometry after its separation in AQ-C18 column. The recovery of this method was 88.4%~110.0% with the coefficient of variation from 0 to 7.7%, which met the requirements of pesticide residue analysis in crops. The linear relationship was good between 0.01 mg/L and 1.00 mg/L. This method was simple, rapid, sensitive and accurate. It was suitable for daily determination of pyraclostrobin in pumpkin, asparagus, cress and papaya.

Key words: pyraclostrobin, liquid chromatography mass spectrometry(LC-MS), determination

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