A stable and reusable aluminum-based metal-organic framework for the effective extraction of four aflatoxins from vegetable oils

文献类型： 外文期刊

第一作者： Jiang, Xianhong

作者： Jiang, Xianhong;Cheng, Jie;Yang, Zhihui;Wang, Peilong

作者机构：

关键词： Mycotoxin; Porous organic framework materials; Sample pretreatment; Liquid chromatography-tandem mass spec-trometry; Edible oil

期刊名称：FOOD CHEMISTRY （ 影响因子：9.8； 五年影响因子：9.7 ）

ISSN： 0308-8146

年卷期： 2025 年 472 卷

页码：

收录情况： SCI

摘要： The high specific surface area of metal-organic framework (MOF) materials endows them with efficient adsorption capabilities, thereby facilitating sample purification. In this study, a novel aluminum-based MOF (AlMOF) was synthesized and employed as a solid-phase extraction (SPE) adsorbent for the purification of aflatoxins B1 (AFB1), AFB2, AFG1, and AFG2 in vegetable oils. It was revealed that Al-MOF adsorbs aflatoxins through hydrogen bonding and it-it interactions. Under optimal SPE conditions, liquid chromatography-tandem mass spectrometry analysis yielded limits of detection ranging from 0.06 to 0.25 mu g/kg and limits of quantification from 0.21 to 0.84 mu g/kg for the four aflatoxins. Recovery rates at concentrations of 5, 10, and 20 mu g/kg ranged from 74% to 110%, with coefficients of variation below 11 %. This method achieves efficient and cost-effective purification of aflatoxins in vegetable oils. Compared to national standard methods, this approach offers advantages such as lower material costs, ease of storage, and reusability.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序