Journal
FOOD CHEMISTRY
Volume 345, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2020.128841
Keywords
Functional beverages; Bisphenols; Magnetic solid-phase extraction; High-performance liquid chromatography; Composite
Funding
- National Nature Science Foundation of China [21777089, 21477068]
- Key Research and Development Program of Shandong Province [2017GSF17107, 2019GSF111016]
- Youth Science Funds of Shandong Academy of Science [2019QN010]
- Natural Science Foundation of Shandong Province [ZR2019BH086]
- Shandong Province Taishan Scholar Program
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A novel porous composite (Fe3O4@TAPB-COF@ZIF-8) was developed for magnetic solid-phase extraction (MSPE) of bisphenols, achieving low detection limits, wide linear range, good repeatability, and satisfactory recoveries. The method established by optimizing MSPE in combination with high-performance liquid chromatography is convenient and sensitive for bisphenol analysis.
In this study, a novel porous composite (Fe3O4@TAPB-COF@ZIF-8) consisting of metal-organic and covalent organic frameworks was developed and applied to the magnetic solid-phase extraction (MSPE) of bisphenols. The extraction parameters such as the extraction time, solution pH, amounts of adsorbent, and ionic strength were investigated to obtain the best extraction conditions. By optimizing the MSPE, a convenient and sensitive analytical method was established in combination with high-performance liquid chromatography. The method achieved low detection limits (0.04-0.05 ng mL(-1)), wide linear range (0.25-1000 ng mL(-1)), good repeatability (1.20-4.30%), good reproducibility (1.34-4.03%), and satisfactory recoveries of four functional beverages (66.2-116.6%).
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