| 冯程程, 刘新刚, 董丰收, 吴小虎, 徐 军, 郑永权*.5种动物源食品中的氟虫腈及其3个代谢物残留量检测[J].植物保护,2019,45(5):207-213. |
| 5种动物源食品中的氟虫腈及其3个代谢物残留量检测 |
| Determination of fipronil and its three metabolite residues infive foods of animal origin |
| 投稿时间：2018-06-04 修订日期：2018-07-23 |
| DOI：DOI: 10.16688/j.zwbh.2018235 |
| 中文关键词: 农药残留 超高效液相色谱-串联质谱 动物源食品 氟虫腈 |
| 英文关键词:pesticide residue UPLC-MS/MS food of animal origin fipronil |
| 基金项目:农药安全性监测与评价项目(2130109-044) |
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| 中文摘要: |
| 利用QuEChERS技术结合超高效液相色谱-串联质谱的方法检测5种动物源食品(鸡肉、鸡蛋、猪肝、牛奶、猪肉)中氟虫腈及其3个代谢物残留量。样品用乙腈提〖JP+1〗取, 经低温处理, 多壁碳纳米管(MWCNTs)、弗罗里硅土(Florisil)和C18分散固相萃取(d-SPE)净化, 外标法定量。在不同浓度的加标水平下, 氟虫腈及其代谢物在5种动物源食品中的平均回收率为72.1%~113.8%, 相对标准偏差RSD为1.9%~17.6%, 检出限LOD在0.73~1.94 μg/kg范围内, 定量限LOQ在5~10 μg/kg范围内。该方法具有简单、灵敏、准确等优点, 适用于动物源食品中氟虫腈及其代谢物的快速筛查和定量检测。 |
| 英文摘要: |
| The QuEChERS technique combined with ultra-high performance liquid chromatography tandem mass spectrometry was used to detect the residues of fipronil and its three metabolites in five foods of animal origin including chicken, milk, eggs, pork liver and pork. The samples were extracted with acetonitrile, and then experienced low-temperature treatment, d-SPE purification of MWCNTs, Florisil and C18, BEH C18 by using the external standard method. At different concentrations, the average recoveries of fipronil and its metabolites in the five foods were in the range of 72.1%-113.8%, with RSD in the range of 1.9%-17.6%. The LOD was in the range of 0.73-1.94 μg/kg, and LOQ in the range of 5-10 μg/kg. This method is simple, sensitive and accurate. It is suitable for rapid screening and quantitative detection of fipronil and its metabolites in the foods animal origin. |
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