湖北农业科学 ›› 2019, Vol. 58 ›› Issue (18): 115-120.doi: 10.14088/j.cnki.issn0439-8114.2019.18.028

• 检测分析 • 上一篇    下一篇

酶抑制法快速检测有机磷农药残留的比较试验

罗俊霞1, 赵建波2, 贾冬1, 尚航影1, 韩洛利1, 宋晓爽1   

  1. 1.郑州市农产品质量检测流通中心,郑州 450006;
    2.郑州市农业技术推广中心,郑州 450006
  • 收稿日期:2019-01-12 出版日期:2019-09-25 发布日期:2019-11-08
  • 通讯作者: 赵建波(1971-),农业推广研究员,(电子信箱)13838293802@139.com。
  • 作者简介:罗俊霞(1972-),女,甘肃靖远人,高级农艺师,从事农产品安全品质检测与研究工作,(电话)13838293802(电子信箱)71819@163.com

Comparative test of enzyme reagent method for rapid detection of organophosphorus pesticide residues

LUO Jun-xia1, ZHAO Jian-bo2, JIA Dong1, SHANG Hang-ying1, HAN Luo-li1, SONG Xiao-shuang1   

  1. 1.Zhengzhou Agricultural Product Quality Inspection and Circulation Center,Zhengzhou 450006,China;
    2.Zhengzhou Agricultural Technology Promotion Center,Zhengzhou 450006,China
  • Received:2019-01-12 Online:2019-09-25 Published:2019-11-08

摘要: 采用6种商品化酶抑制法快速检测试剂盒对敌敌畏、喹硫磷、敌百虫、辛硫磷4种有机磷农药进行了快速测定。结果表明,6种试剂盒对4种有机磷农药的敏感性、检出限各不一样;6种试剂盒对4种有机磷农药抑制率与农药浓度的对数线性模拟回归的线性范围也不相同;取用3.0 mL的提取液和取用2.5 mL的提取液抑制率差别不大,仅有个别农药在个别浓度水平下有差异。酶抑制法快速检测试剂盒对各种有机磷农药的检测敏感性不同,在实际的检测工作中,建议对抑制率≥10%的样品进行复检,同时采用色谱质谱进行了定性定量分析。

关键词: 酶抑制法, 快速检测, 有机磷农药, 敏感性

Abstract: Four organophosphorus pesticides, including dichlorvos, quinthion, trichlorfon and octamphos-methyl, were rapidly determined by six reagent kits of commercial enzyme inhibition. The results showed that the reproducibility of pesticide residue in the rapid detection kit by enzyme inhibition decreased with the increase of inhibition rate. The sensitivity and detection limit of each reagent box to several pesticides were different. The inhibition rate of each reagent box for the four pesticides is not the same as the linear regression range of the logarithm of the pesticide concentration. There was little difference between 3.0 mL extraction and 2.5 mL extraction during the test, and individual pesticides differed at individual concentration levels. Since the reagent box for rapid detection of pesticide residues by enzyme inhibition method has different sensitivity for the detection of various pesticides, it is recommended that the sample with a suppression rate of ≥10% be reexamined in the actual test work, and that the chromatographic mass spectrometry be used for qualitative quantification.

Key words: enzyme inhibition method, rapid detection, organophosphorus pesticide, sensitivit

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