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Effective enrichment and detection of bisphenol diglycidyl ether, novolac glycerol ether and their derivatives in canned food using a novel magnetic sulfonatocalix[6]arene covalent cross-linked polymer as the adsorbent.
Food Chemistry 2022 August 14
A core-shell magnetic sulfonatocalix[6]arene covalently cross-linked polymer was proposed as a magnetic adsorbent, combined with ultra-high performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS) for the enrichment and determination of epoxy derivatives in canned foods. The adsorbent has high density of host-guest recognition functional groups, abundant binding sites and suitable cavity size, showing good extraction performance for epoxy derivatives. Quantum chemical simulation calculations provedmultiple interaction forces in the adsorption process. Theextractionparameterswere investigated. Under optimized experimental conditions, 13 kinds of target analytes showed low detection limits (0.0072-0.023 ng/g) and good precisions (RSDs of 0.8 %-9.4 %). This method has been successfully applied to the simultaneous determination of 13 kinds of epoxy derivatives in different food samples including canned beverage, fish, meat, and milk powder. Satisfactory recoveries (74.9 %-118 %) were obtained. The results showed the potential application prospects in the enrichment and detection of hazardous substances in food.
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