本文選題：快速提取農(nóng)藥方法　切入點(diǎn)：超高效液相色譜-四極桿飛行時(shí)間質(zhì)譜　出處：《色譜》2017年08期

【摘要】：利用快速提取農(nóng)藥(fast pesticide extraction,FaPEx)方法前處理樣品,并結(jié)合超高效液相色譜-四極桿飛行時(shí)間質(zhì)譜(UPLC-Q-TOF)技術(shù)建立了非靶向快速篩查進(jìn)口糧谷中未知的多種農(nóng)藥殘留方法。采用1%(v/v)醋酸乙腈溶液提取糧谷中未知的農(nóng)藥殘留,FaPEx固相萃取柱凈化、濃縮,UPLC-Q-TOF檢測(cè)。利用目標(biāo)化合物特征離子的精確質(zhì)量數(shù)、同位素匹配、二級(jí)碎片信息和保留時(shí)間進(jìn)行數(shù)據(jù)庫匹配,篩查可疑未知農(nóng)藥。結(jié)果表明,該方法無需對(duì)照標(biāo)準(zhǔn)品即可快速篩查進(jìn)口糧谷中的農(nóng)藥殘留,能夠應(yīng)用于進(jìn)口糧谷樣品的實(shí)際篩查。該方法快速、準(zhǔn)確、分析通量高,可以為進(jìn)口糧谷中農(nóng)藥殘留的快速篩查和質(zhì)量控制提供重要的方法依據(jù)。
[Abstract]:The method of rapid extraction of pesticide pesticide extraction with FaPExand UPLC-Q-TOF technique was used to screen the unknown pesticide residues in imported grain grain by using UPLC-Q-TOF technique and ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF).FaPEx solid-phase extraction column was used to purify the unknown pesticide residue in grain grain by acetonitrile acetic acid solution, and the concentration was determined by UPLC-Q-TOF.Using the accurate mass number of target compound characteristic ions, isotopic matching, secondary fragment information and retention time to match the database to screen suspected unknown pesticides.The results showed that the method could be used to screen the pesticide residues in imported grain samples quickly without reference standard, and it could be applied to the actual screening of imported grain samples.This method is rapid, accurate and has high analytical flux. It can provide an important basis for rapid screening and quality control of pesticide residues in imported grain.
【作者單位】： 舟山出入境檢驗(yàn)檢疫局;安捷倫科技中國有限公司;
【基金】：國家質(zhì)檢總局科技計(jì)劃項(xiàng)目(2015IK306)~~
【分類號(hào)】：O657.63;TS210.7

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