吸附
农药残留
杀虫剂
化学
石墨烯
萃取(化学)
色谱法
残留物(化学)
材料科学
纳米技术
有机化学
农学
生物
作者
Yanan Yuan,Yanfei Zhang,Mingwei Wang,Jiankun Cao,Hongyuan Yan
标识
DOI:10.1016/j.foodchem.2024.139341
摘要
The escalating use of pesticides on fruits and vegetables has raised concerns about potential health risks. Therefore, we developed a superhydrophilic resin/graphene oxide (SR/GO) with rich adsorption interactions using an eco-friendly synthetic approach. SR/GO demonstrated excellent hydrophilicity, ensuring optimal contact with aqueous sample matrices. The multiple adsorption interactions, including π–π conjugation, hydrogen bonding, and electrostatic adsorption, facilitated multi-pesticide residue co-extraction. The synthesized SR/GO was applied to a miniaturized centrifugation-accelerated pipette-tip extraction method, coupled with high-performance liquid chromatography. The optimized method exhibited low consumption (15.0 mg adsorbent), and high efficiency, with low detection limits (1.4–2.9 ng g−1) and high recoveries (75.3–113.0%). Water-compatible SR/GO, along with a miniaturized extraction process, showcases a potent analytical approach for pesticide residue analysis in fruits and vegetables. The significance of this method lies in its ability to ensure agricultural and food safety by using a low-cost and efficient multi-pesticide residue analytical strategy.
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