Determination of multiple mycotoxins in chili powder using cold-induced liquid-liquid extraction and Fe3O4@MWCNTs-NH2 coupled with UPLC-Q-TOF/MS

文献类型： 外文期刊

第一作者： Zhou, Fenglan

作者： Zhou, Fenglan;Agarry, Israel Emiezi;Kan, Jianquan;Chen, Kewei;Cai, Tian;Deng, Huiling;Hu, Jiang;Xu, Donghui;Feng, Hui;Zhou, Fenglan;Agarry, Israel Emiezi;Kan, Jianquan;Cai, Tian;Chen, Kewei;Zhou, Fenglan;Agarry, Israel Emiezi;Kan, Jianquan;Chen, Kewei

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关键词： Chili powder; Mycotoxins; Matrix effects; Food safety; Magnetic solid phase extraction; Cold -induced liquid-liquid extraction

期刊名称：FOOD CHEMISTRY （ 影响因子：8.8； 五年影响因子：8.6 ）

ISSN： 0308-8146

年卷期： 2023 年 423 卷

页码：

收录情况： SCI

摘要： Food matrix interference is still a big challenge in analyzing multiclass mycotoxins. Herein, a novel cold-induced liquid-liquid extraction-magnetic solid phase extraction (CI-LLE-MSPE) coupled with ultra-high performance liquid chromatography-quadrupole time of flight mass spectrometry (UPLC-Q-TOF/MS) method was explored for the simultaneous determination of multiple mycotoxins in chili powders. Fe3O4@MWCNTs-NH2 nanomaterials were prepared and characterized, and the factors affecting the MSPE process were investigated. Based on this, the CI-LLE-MSPE-UPLC-Q-TOF/MS method was established for determining ten mycotoxins in chili powders. The proffered technique eliminated the matrix interference effectively and demonstrated strong linearity (0.5-500 mu g/kg, R2 >= 0.999), high sensitivity (limit of quantification was 0.5-1.5 mu g/kg), and the recovery was 70.6%111.7%. The extraction process is simpler than conventional methods, as the adsorbent can be separated using magnets, and reusable adsorbents are beneficial in reducing costs. In addition, the method can provide a valuable reference for pretreatment procedures for other complex matrices.

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