Chen Kaiying, Liu Xingang, Wu Xiaohu, Dong Fengshou, Xu Jun, Zheng Yongquan
a State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection , Chinese Academy of Agricultural Sciences , Beijing , PR China.
Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2018 Apr;35(4):715-722. doi: 10.1080/19440049.2017.1421777. Epub 2018 Jan 17.
A new analytical method using the quick, easy, cheap, effective, rugged and safe (QuEChERS) procedure for simultaneous determination of afidopyropen and its metabolite M440I007 residues in tomato, watermelon, pepper, cucumber, pear, grape, cabbage and soil samples was developed using ultra-high performance liquid chromatography coupled with tandem mass spectrometry. The target compound was determined in less than 5.0 min using an electrospray ionisation source in positive mode (ESI). The limit of quantification was 1 μg kg in different matrices. Two sorbents primary secondary amine and graphitised carbon black were used in the QuEChERS procedure, and matrix-matched standards gave satisfactory recoveries and relative standard deviation (RSD) values in different matrices at three spiked levels (1, 10 and 500 μg kg). For afidopyropen, the recoveries ranged from 83% to 104% with an intra-day relative standard deviation (RSDr) of 1-8%, while they were from 80% to 103% with RSDr of 2-8% for M440I007. Reproducibility ranged between 1% and 19% for the three spiked levels.
建立了一种采用快速、简便、廉价、高效、耐用且安全（QuEChERS）方法的新型分析方法，用于同时测定番茄、西瓜、辣椒、黄瓜、梨、葡萄、卷心菜和土壤样品中的氟吡呋喃酮及其代谢物M440I007残留量，该方法采用超高效液相色谱-串联质谱联用技术。使用电喷雾电离源正模式（ESI），在不到5.0分钟内即可测定目标化合物。不同基质中的定量限为1 μg/kg。在QuEChERS方法中使用了两种吸附剂——伯仲胺和石墨化炭黑，基质匹配标准品在三个加标水平（1、10和500 μg/kg）下在不同基质中给出了令人满意的回收率和相对标准偏差（RSD）值。对于氟吡呋喃酮，回收率在83%至104%之间，日内相对标准偏差（RSDr）为1-8%，而对于M440I007，回收率在80%至103%之间，RSDr为2-8%。三个加标水平的重现性在1%至19%之间。
