浙江农业科学 ›› 2025, Vol. 66 ›› Issue (6): 1482-1488.DOI: 10.16178/j.issn.0528-9017.20240286

• 食品技术 • 上一篇    下一篇

种植业能力验证样品中43种农药残留测定

陈子平(), 何明山(), 张雪红   

  1. 阳山县农产品质量安全监督管理站,广东 清远 513100
  • 收稿日期:2024-04-08 出版日期:2025-06-11 发布日期:2025-06-23
  • 通讯作者: 何明山,E-mail: ysnj7889611@163.com
  • 作者简介:陈子平(1984—),男,广东连州人,工程师,硕士,主要从事农产品质量安全监督检测研究,E-mail: czp200808@126.com

Determination of 43 kinds of pesticide residues in the samples of planting proficiency testing

CHEN Ziping(), HE Mingshan(), ZHANG Xuehong   

  1. Agricultural Products Quality and Safety Supervision and Management Station of Yangshan County, Qingyuan 513100, Guangdong
  • Received:2024-04-08 Online:2025-06-11 Published:2025-06-23

摘要:

气相色谱法在县级农产品质量安全检测机构广泛应用,并被用来检测2023年广东省种植业产品农药残留检测能力验证编号LAB-156小白菜样品中43种农药残留。结果表明,小白菜阳性考核样中添加了三唑磷、乙酰甲胺磷、杀扑磷、三唑酮、氰戊菊酯等5种农药,其余38种农药未检出,定量检测检出值分别是0.086 8、0.084 9、0.118 0、0.102 0、0.099 2 mg·kg-1,同批检测的质控加标样农药残留回收率在79.0%~99.2%。结合主办方后期公布的加标值计算得出,考核样中三唑磷、乙酰甲胺磷、杀扑磷、三唑酮、氰戊菊酯的回收率分别是108.5%、84.9%、98.3%、102.0%、99.2%,均在合格范围70.0%~120.0%,不存在漏检或多检,可判定对编号LAB-156样品中43种农药残留的检测结果是合格的。本文研究结果可作为县级农产品质量安全检测机构测定种植业产品农药残留的参考。

关键词: 气相色谱, 能力验证, 种植业, 农药残留

Abstract:

Gas chromatography is widely used in county-level agricultural product quality and safety testing institutions, and was used to detect 43 pesticide residues in pak choi samples numbered LAB-156 in the proficiency testing of pesticide residue detection for planting products in Guangdong Province in 2023. The results showed that five pesticides such as triazophos, acephate, methidathion, triadimefon and fenvalerate were added to the positive test samples of pak choi, and the other 38 kinds of pesticides were not detected. The detection values of quantitative detection were 0.086 8, 0.084 9, 0.118 0, 0.102 0 and 0.099 2 mg·kg-1, respectively. The recovery rates of pesticide residues in the quality control standard samples of the same batch were between 79.0%-99.2%. Combined with the spiked values announced by the organizer at a later stage, the recovery rates of triazophos, acephate, methidathion, triadimefon and fenvalerate in the test samples were 108.5%, 84.9%, 98.3%, 102.0% and 99.2%, respectively, which were all within the qualified range of 70.0%-120.0%, and there was no missed or multiple detection. It can be judged that the test results of 43 kinds of pesticide residues in the numbered LAB-156 samples were qualified. The results of this study can be used as a reference for the determination of pesticide residues in planting products by county-level agricultural product quality and safety testing institutions.

Key words: gas chromatogaraphy, proficiency testing, planting, pesticide residues

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