Benzoxazine Porous Organic Polymer as an Efficient Solid-Phase Extraction Adsorbent for the Enrichment of Chlorophenols from Water and Honey Samples

Porous organic polymers have gained great research interest in the field of adsorption. A benzoxazine porous organic polymer (BoxPOP) constructed from p-phenylenediamine, 1,3,5-trihydroxybenzene and paraformaldehyde was fabricated and explored as an adsorbent for solid-phase extraction (SPE) of four chlorophenols from water and honey samples. Under the optimized SPE conditions, the response linearity for the analysis of the SPE extract of the chlorophenols by high performance liquid chromatography-diode array detector was observed in the range of 0.2-40.0 ng mL(-1) for water samples and 5.0-400.0 ng g(-1) for honey samples. The method detection limits of the analytes were 0.06-0.08 ng mL(-1) for water samples and 1.5-2.0 ng g(-1) for honey samples. The recoveries of the analytes from fortified water and honey samples ranged from 84.8 to 119.0% with the relative standard deviations below 8.4%. The results indicate that the prepared BoxPOP is an effective adsorbent for the chlorophenols. The established method provides an alternative approach for the determination of chlorophenols in real samples.

Automated summary

A novel porous organic polymer (BoxPOP) was fabricated and explored for the solid-phase extraction of chlorophenols from water and honey samples. The results demonstrated the effectiveness of BoxPOP as an adsorbent for chlorophenols, providing an alternative method for the determination of these compounds in real samples.