单帽葫芦脲基磁固相萃取-高效液相色谱-质谱联用分析蔬菜中20种农药的多残留

IF 9.8 1区农林科学 Q1 CHEMISTRY, APPLIED

Food Chemistry Pub Date : 2025-07-25 DOI:10.1016/j.foodchem.2025.145688

Huiyu He , Rui Wang , Rongbin Nie , Nan Dong

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引用次数: 0

摘要

预处理技术存在操作繁琐、效率低、选择性差等缺点。因此，我们提出了一种单帽葫芦[7]-MagSPE磁固相萃取（Q[7]-MagSPE）结合高效液相色谱-串联质谱（HPLC-MS/MS）分析20种农药多残留的方法。通过Q[7]的一个富电子羰基入口与金之间的反应，将Q[7]组装到金磁性纳米粒子（GoldMag）上，构建了Q[7]-MagSPE。在q[7]-MagSPE中集成了超分子的主客体相互作用活性、GoldMag的高分散性和易分离性。20种农药的检出限均小于10.3 ng/kg，加样回收率为71.55 ~ 110.6 %。此外，还评价了q[7]-GoldMag的可重复使用性和洗涤次数对农药残留的影响。因此，Q[7]-MagSPE为蔬菜中农药的多残留检测提供了一种快速、稳健的预处理方法，对食品安全具有重要意义。

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Singly capped cucurbit[7]uril-mediated magnetic solid phase extraction coupled with HPLC-MS/MS for the multiresidue analysis of 20 pesticides in vegetables

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Singly capped cucurbit[7]uril-mediated magnetic solid phase extraction coupled with HPLC-MS/MS for the multiresidue analysis of 20 pesticides in vegetables

Pretreatment technology suffers from drawbacks such as tedious operation, low efficiency, and poor selectivity. Hence, we presented a singly capped cucurbit[7]uril-mediated magnetic solid phase extraction (Q[7]-MagSPE) combined with high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) for multiresidue analysis of 20 pesticides. The Q[7]-MagSPE was constructed by assembling Q[7] onto the gold magnetic nanoparticles (GoldMag) via the reaction between one of the electron-rich carbonyl portals of Q[7] and gold. The host-guest interaction activity of supramolecules, the high dispersibility and easy separability of GoldMag were integrated in the Q[7]-MagSPE. The detection limits for 20 pesticides were lower than 10.3 ng/kg, and the recoveries were 71.55–110.6 %. Moreover, the reusability of the Q[7]-GoldMag and effect of washing times on the pesticide residue were evaluated to be satisfactory. Therefore, the Q[7]-MagSPE provides a rapid and robust pretreatment method for the multiresidue determination of pesticides in vegetables, which is of great significance for food safety.

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来源期刊

Food Chemistry 工程技术-食品科技

CiteScore

16.30

自引率

10.20%

发文量

3130

审稿时长

122 days

期刊介绍： Food Chemistry publishes original research papers dealing with the advancement of the chemistry and biochemistry of foods or the analytical methods/ approach used. All papers should focus on the novelty of the research carried out.