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中国农学通报

中国农学通报 ›› 2022, Vol. 38 ›› Issue (4): 99-106.doi: 10.11924/j.issn.1000-6850.casb2021-0422

所属专题： 生物技术； 植物保护

• 植物保护·农药 • 上一篇    下一篇

溶剂标、基质标对农药残留检测结果的影响及校正

强生军1(), 刘玉荣2(), 李刚3   

  1. 1白银市农产品质量安全监督检测中心,甘肃白银 730900
    2白银市农业农村局,甘肃白银 730900
    3白银市农业技术中心,甘肃白银 730900
  • 收稿日期:2021-04-20 修回日期:2021-10-20 出版日期:2022-02-05 发布日期:2022-03-16
  • 通讯作者: 刘玉荣
  • 作者简介:强生军,男,1972年出生,甘肃白银人,高级农艺师,大学本科,主要从事农产品检验检测及相关研究工作。通信地址：730900 甘肃省白银市白银区水川路140号 甘肃省白银市农产品质量安全监督检测中心,Tel：0943-8311855,E-mail： 517695904@qq.com。
  • 基金资助:
    甘肃省自然科学基金项目“白银市农产品质量安全检验检测能力与创新项目”(2017-2-16N);甘肃省科技厅贫困专项基金项目“甘肃省边远贫困地区、边疆民族地区和革命老区人才支持计划”(2020-2021-5)

Influence and Correction of Solvent Standard and Matrix Standard on Pesticide Residue Detection Results

QIANG Shengjun1(), LIU Yurong2(), LI Gang3   

  1. 1Agricultural-Products Quality and Safety Supervision and Detection Center of Baiyin City, Baiyin, Gansu 730900
    2Agricultural and Rural Bureau of Baiyin City, Baiyin, Gansu 730900
    3Agricultural Technology Center of Baiyin City, Baiyin, Gansu 730900
  • Received:2021-04-20 Revised:2021-10-20 Online:2022-02-05 Published:2022-03-16
  • Contact: LIU Yurong

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摘要：

为研究基质效应响应特性、优化检测方法,尽可能消除或补偿基质效应带来的不利影响,笔者针对甘肃省白银市代表性蔬菜（结球甘蓝）、水果（桃）,通过对比实验研究溶剂标与基质标对农残检测结果的影响,并提出基质标校正优化方案。结果显示,结球甘蓝、桃基质对大多数农药残留的测定结果有显著的基质效应,且对比结球甘蓝,桃的基质效应更为显著。桃基质对氧化乐果、水胺硫磷、丙溴磷、腐霉利4种农药具有明显基质增强效应,结球甘蓝基质对三唑磷基质增强效应明显,而对毒死蜱、联苯菊酯无明显基质效应。桃基质对有机磷农药的基质效应均高于有机氯农药,而结球甘蓝中对于农药类型无明显倾向性。相较于溶剂标,基质标校正方法更为优越,可有效消除基质效应对检测结果准确性的影响,该优化方案可行。

关键词: 农药, 农药残留检测, 基质效应, 溶剂标, 基质标

Abstract:

To investigate the matrix-effect response characteristics and optimize the detection methods, an experiment was conducted on representative vegetables (heading cabbage) and fruits (peach) in Baiyin City, Gansu Province, which could eliminate or compensate for the adverse effect caused by matrix effect as much as possible. The solvent standard and matrix standard effect on pesticide residue detection (PRD) results were experimentally studied, and the optimization method of matrix standard correction was put forward. The results show that heading cabbage and peach have significant matrix effect on PRD results, and matrix effect of peach is more significant than that of heading cabbage. Peach has obvious enhancement matrix effect on omethoate, isocarbophos, profenofos and procymidone. Heading cabbage has obvious enhancement matrix effect on triazophos, but has no obvious matrix effect on chlorpyrifos and bifenthrin. The matrix effect of peach on organophosphorus pesticides is higher than organochlorine pesticides, but there is no obvious tendency for pesticide types in heading cabbage. Compared with the solvent standard, the matrix-standard correction method is more accurate, which can effectively eliminate the influence of matrix effect on the accuracy of PRD results. Moreover, the optimization method of matrix standard correction is proved to be feasible.

Key words: pesticide, pesticide residue detection, matrix effect, solvent standard, matrix standard

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