Abstract
The magnetic functionalized hydrogen bond organic framework named Fe3O4@PFC-11/1 was prepared for the first time and used as sorbent of magnetic solid-phase extraction to enrich bisphenols (BPs) prior to high-performance liquid chromatography analysis. The limits of detection were achieved 0.03–0.07 ng/mL, and the enrichment factors were calculated in the range of 234–296. The adsorption of Fe3O4@PFC-11/1 to BPs can be finished within 10 s. The maximum adsorption capacities of Fe3O4@PFC-11/1 to bisphenol F, bisphenol A, bisphenol B and bisphenol AF were calculated as 249.95, 413.74, 474.38 and 676.06 mg/g, respectively. The main adsorption mechanisms of BPs on Fe3O4@PFC-11/1 are attributed to pore filling, van der Waals force, hydrogen bond and π-π interaction. Finally, BPs were successfully detected in environmental and human samples with satisfactory recoveries (78.2–117.9 %). This work presented combination of Fe3O4 with PFC-1 to obtain a promising magnetic sorbent for extraction and enrichment of trace compounds in complex matrices.
Published Version
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