Liu Weiguo, Su Youzhi, Liu Jun, Zhang Kun, Wang XiYuan, Chen Yinguang, Duan Luchun, Shi Feng
College of Resources and Environment Science, Xinjiang University, Urumqi, China; Key Laboratory of Oasis Ecology, Ministry of Education, Xinjiang University, Urumqi, China.
Technical Center of Yining Customs, Yining ,China; Department of Technology, Urumqi Customs, Urumqi, China.
Food Chem. 2021 Nov 15;362:130148. doi: 10.1016/j.foodchem.2021.130148. Epub 2021 May 18.
Agricultural products are often contaminated with trace amounts of pesticide residues. To ensure food safety, a reliable, sensitive, and efficient method that accurately identifies pesticide residues in a wide variety of foodstuffs is needed. This study applied a modified QuEChERS extraction technique, coupled with high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) to optimize the identification of the cyflufenamid, a new broad-spectrum fungicide with unclear mode of action in toxicity, in 12 foodstuffs. The method has been validated according to the European Union SANTE/12682/2017 guidelines for its linearity, limit of detection (LOD), and limit of quantification (LOQ), indicating an excellent performance. The recovery of cyfluenamid in all matrix were ranged between 70.8% and 117.8%, with relative standard deviation (RSD) <15% which is much lower compared to other methods. The method has been used for determine cyfluenamid in foodstuffs followed the ISO17025:2017 measurement technical note, which demonstrated it is suitable for routine quantitative analysis of cyflufenamid in most of the popular commercial agricultural products.
农产品常常被微量的农药残留所污染。为确保食品安全，需要一种可靠、灵敏且高效的方法来准确识别各种食品中的农药残留。本研究应用改良的QuEChERS提取技术，结合高效液相色谱 - 串联质谱法（HPLC-MS/MS），以优化对12种食品中氟吡菌酰胺（一种作用模式毒性不明的新型广谱杀菌剂）的鉴定。该方法已根据欧盟SANTE/12682/2017指南对其线性、检测限（LOD）和定量限（LOQ）进行了验证，显示出优异的性能。氟吡菌酰胺在所有基质中的回收率在70.8%至117.8%之间，相对标准偏差（RSD）<15%，与其他方法相比低得多。该方法已按照ISO17025:2017测量技术规范用于测定食品中的氟吡菌酰胺，这表明它适用于大多数流行商业农产品中氟吡菌酰胺的常规定量分析。
