Bisphenols (BPs), one of the endocrine disrupting chemicals (EDCs), are harmful to health with the potential carcinogenicity, teratogenicity and neurotoxicity. In this paper, we developed an electro-enhanced solid-phase microextraction with membrane protection method to enrich BPs. The extraction time can be shortened to 10 min with the electric field, and the prepared fiber can be repetitively used 100 times with the membrane protection. The factors affecting extraction such potential, pH, extraction temperature and extraction time were optimized. Under optimal conditions, the linear ranges were 2-600 ng mL for BPAF and 2-800 ng mL for the other four BPs (BPB, BPF, BPA, BPZ), and the limits of detection (S/N=3) were from 0.09 (BPAF) to 0.41 (BPA) ng mL, with intra-day and inter-day precisions <5.16% and 9.29%, respectively. The developed method has been applied to the determination of trace BPs in canned meat with the recoveries of 73%-117%, showing a promising application for pretreatment in complex samples.
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| http://dx.doi.org/10.1016/j.chroma.2022.463592 | DOI Listing |
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