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中国农学通报 ›› 2018, Vol. 34 ›› Issue (9): 127-130.doi: 10.11924/j.issn.1000-6850.casb17030079

所属专题: 玉米

• 食品 营养 检测 安全 • 上一篇    下一篇

气相色谱-氮磷检测法同时测定玉米中莠去津、乙草胺和丁草胺的残留量

姚 杰,刘传德,周先学,王志新,鹿泽启,柳 璇,兰 丰,姜 蔚   

  1. 山东省烟台市农业科学研究院,山东省烟台市农业科学研究院,山东省烟台市农业科学研究院,山东省烟台市农业科学研究院,山东省烟台市农业科学研究院,山东省烟台市农业科学研究院,山东省烟台市农业科学研究院,山东省烟台市农业科学研究院
  • 收稿日期:2017-03-13 修回日期:2018-01-31 接受日期:2017-05-25 出版日期:2018-03-21 发布日期:2018-03-21
  • 通讯作者: 刘传德
  • 基金资助:
    无基金

Determination of Atrazine, Acetochlor and Butachlor Residues in Maize by GC-FTD

  • Received:2017-03-13 Revised:2018-01-31 Accepted:2017-05-25 Online:2018-03-21 Published:2018-03-21

摘要: 建立气相色谱-氮磷检测法测定玉米中除草剂莠去津、乙草胺和丁草胺残留量的分析方法。玉米籽粒用乙腈提取,过中性氧化铝柱净化处理,用GC-FTD检测。在0.01、0.05和0.5 mg/kg 3个添加水平下,莠去津、乙草胺和丁草胺的平均添加回收率分别为84%~105%、81%~100%、87%~103%,相对标准偏差分别为1.0%~3.5%、1.1%~5.2%、3.7%~4.4%,莠去津、乙草胺和丁草胺在0.01~2.0 mg/L范围内呈良好的线性关系,最低检测浓度分别为0.005、0.01、0.01 mg/kg。该方法简单、灵敏、可靠,可应用于玉米中莠去津、乙草胺和丁草胺残留量的测定。

关键词: 科研试验基地, 科研试验基地, 绩效评价, 新疆农业科学院

Abstract: The aim is to develop an analytical method for determining the atrazine, acetochlor and butachlor herbicides residues in maize by GC-FTD. The kernel samples of maize were extracted with acetonitrile, the extracts were cleaned up by neutral alumina column, and then determined by GC- FTD. The method was validated at three spike levels (0.01, 0.05, 0.5 mg/kg) in maize kernel. The average recoveries of atrazine, acetochlor and butachlor in maize kernel were 84%-105%, 81%-100%, 87%-103%, withRSD of 1.0%- 3.5%, 1.1%-5.2%, 3.7%-4.4%. Good linear correlation of atrazine, acetochlor and butachlor residues were found in the concentration range of 0.01-2.0 mg/L. The limits of detection were 0.005, 0.01, 0.01 mg/kg for atrazine, acetochlor and butachlor. This method is simple, sensitive and reliable. It can be used for the determination of atrazine, acetochlor and butachlor residues in maize.

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