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Article Abstract
Cereal foods are very susceptible to aflatoxins (AFs) pollution, posing significant health hazards to people. This necessitates the development of robust sorbent for enriching and sensitively detecting AFs in cereal foods. Herein, two heterocyclic hyper-crosslinked polymers (HCP-1 and HCP-2) sorbents were developed using benzotriazole as monomer for the first time. Benefiting from rich NH groups, HCP-1 exhibited prominent adsorption for AFs through hydrogen bond interaction. An HCP-1 based solid phase extraction method in conjunction with high performance liquid chromatography-fluorescence detector was built to effectively detecting four AFs (AFB1, AFB2, AFG1 and AFG2) in millet and mung bean. The limit of quantification of the method (0.02-1.00 ng g) was below the European Union levels (2 ng g for AFB1 and 4 ng g for the sum of four AFs). Satisfactory recoveries were achieved, ranging from 87.5 to 116 %, with relative standard deviation below 7.6 %.
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| http://dx.doi.org/10.1016/j.foodchem.2025.145689 | DOI Listing |
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