Magnetic porous carbon as an adsorbent for the enrichment of chlorophenols from water and peach juice samples

•Novel magnetic porous carbon (MPC) was synthesized.•MPC is used as an adsorbent for the preconcentration of chlorophenols from water and juice samples.•This adsorbent was efficient and reusable for complex matrix samples.

In this paper, porous carbon with a highly ordered structure was synthesized using zeolite ZSM-5 as a template and sucrose as a carbon source. Through the in situ reduction of Fe3+, magnetic property was successfully introduced into the ordered porous carbon, resulting in a magnetic porous carbon (MPC). MPC was used as an adsorbent for the extraction of some chlorophenols (2-chlorophenol, 3-chlorophenol, 2,3-dichlorophenol and 3,4-dichlorophenol) from water and peach juice samples followed by high performance liquid chromatography-ultraviolet detection. Good linearity was observed in the range 1.0–100.0 ng mL−1 and 2.0–100.0 ng mL−1 for water and peach juice sample, respectively. The limits of detection (S/N = 3) were between 0.10 and 0.30 ng mL−1. The relative standard deviations were less than 5.3% and the recoveries of the method for the compounds were in the range from 87.8% to 102.3%. The results demonstrated that the MPC had a high adsorptive capability toward the four chlorophenols from water and peach juice samples.