Ferrocene-based magnetic hypercrosslinked polymer: A novel magnetic solid-phase extraction adsorbent for chlorophenols

In this work, novel magnetic hypercrosslinked polymers (Fe3O4@BDPF-HCPs) were fabricated by the cross-linking of 1,1 '-bis(diphenylphosphino)ferrocene (BDPF) monomer with different external crosslinkers via Friedel-Crafts reaction, followed by modification with Fe3O4 nanoparticles. The Fe3O4@BDPF-HCP-1 was used as a magnetic solid-phase extraction adsorbent to enrich some chlorophenols (CPs) from environmental water, peach beverage and honey samples prior to high performance liquid chromatography analysis. Under the op-timum conditions, the target CPs exhibited good linearity with determination coefficient r2 > 0.994. The detection limits of the method (S/N = 3) were 0.03-0.08 ng mL-1 for water, 0.08-0.20 ng mL-1 for peach beverage and 0.3-1.0 ng g- 1 for honey sample. The recoveries of CPs in the spiked water, peach beverage, and honey samples were in the range of 80.0 %-112.2 %, 89.0 %-112.2 % and 87.9 %-118.4 %, respectively. The results revealed that the Fe3O4@BDPF-HCP-1 based method can be served as a promising alternative for detection CPs in complex matrix samples.