食品科学

• 安全检测 • 上一篇    下一篇

3 种杀菌剂在北京林地食用菌中的残留与安全性评价

贺 敏1,2,罗梅梅3,王纪华1,马智宏1,刘 宇2,王守现2   

  1. 1.北京农业质量标准与检测技术研究中心,北京 100097;2.北京市农林科学院植物保护环境保护研究所,
    北京 100097;3.湖南农业大学资源与环境学院,湖南 长沙 410128
  • 出版日期:2015-02-25 发布日期:2015-02-16
  • 基金资助:

    北京市农林科学院青年科研基金项目(QNJJ201210);国家现代农业产业技术体系北京市食用菌产业创新团队项目

Residue and Safety Evaluation of Three Fungicides in Edible Fungi in Plantation Woodlands of Beijing

HE Min1,2, LUO Meimei3, WANG Jihua1, MA Zhihong1, LIU Yu2, WANG Shouxian2   

  1. 1. Beijing Research Center for Agricultural Standards and Testing, Beijing 100097, China; 2. Institute of Plant Protection and
    Environment Protection, Beijing Academy of Agriculture and Foresty Sciences, Beijing 100097, China;
    3. College of Resources and Environmental, Hunan Agricultural University, Changsha 410128, China
  • Online:2015-02-25 Published:2015-02-16

摘要:

在北京市林地食用菌基地采集不同品种食用菌,监测多菌灵、噻菌灵和咪鲜胺的残留水平。样品用乙腈提取,N-丙基乙二胺和弱阳离子交换吸附剂净化,超高效反相液相色谱分离,三重四极杆质谱检测,基质匹配标准溶液的外标法定量。在添加量为0.01~1.0 mg/kg时,方法的回收率为74%~100%,相对标准偏差为2%~13.0%,咪鲜胺、噻菌灵和多菌灵3 种农药的最小检出量分别为0.003、0.003、0.001 5 ng,最低检出浓度为0.01 mg/kg。林地食用菌样品中噻菌灵的残留量均小于0.01 mg/kg,多菌灵的残留量为0.01~0.42 mg/kg,咪鲜胺的残留量为0.01~0.51 mg/kg。我国规定多菌灵、噻菌灵、咪鲜胺在食用菌中的最大残留限量分别为1.0、5.0、2.0 mg/kg,以此为依据,北京林地食用菌中的多菌灵、噻菌灵和咪鲜胺残留是安全的。

关键词: 超高效液相色谱-串联质谱, 多菌灵, 噻菌灵, 咪鲜胺, 食用菌

Abstract:

The objective of this study was to collect and analyze residue data of carbendazim, thiabendazole and prochlorazin edible fungi in Beijing plantation woodlands. Samples were extracted with acetonitrile, cleaned up by mixed PSA andMCX dispersive solid-phase extraction, separated by ultra performance liquid chromatography, detected using a triplequadrupole mass spectrometer under the multi-reaction monitoring model, and quantitatively analyzed with externalstandard method using matrix-match standard solution. Average recoveries in samples ranged from 74% to 100% at threespiked levels from 0.01 to 1.0 mg/kg, with relative standard deviations varying from 2% to 13.0%. Thiabendazole residuesin the tested samples were below 0.01 mg/kg, carbendazim residues ranged from 0.01 to 0.42 mg/kg and prochloraz residuesranged from 0.01 to 0.51 mg/kg, which were all less than their maximum residue limits in edible fungus (5.0, 1.0 and2.0 mg/kg, respectively). Based on these results, the three pesticides residues were safe for the edible fungi in Beijingplantation woodlands.

Key words: ultra performance liquid chromatography-triple quadrupole mass spectrometry (UPLC-MS-MS), carbendazim;thiabendazole, prochloraz, edible fungus

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