A magnetic porphyrin-based porous organic polymer (M-PPOP) with good porosity, high surface area and strong magnetism was prepared and employed as the adsorbent for the magnetic solid phase extraction of the phenylurea herbicides (metoxuron, monolinuron, chlorotoluron, and buturon) from bottled grape juice and tomato samples prior to their determination by high performance liquid chromatography. Under the optimized conditions, the developed method exhibited a good linear range, low limits of detection, low relative standard deviations (<6.8%), good method recoveries between 80.8% and 117%, and high enrichment factors (51–106). For a better elucidation of the adsorption of the M-PPOP towards the analytes, the extraction performance of the M-PPOP for different types of organic compounds including polycyclic aromatic hydrocarbons, phenylurea insecticides, phenylurea herbicides and phenols was studied. The results indicated that the π- stacking, hydrogen-bonding and hydrophobic interactions between the M-PPOP and the analytes played a main role for the adsorption. The results revealed that the M-PPOP material had a great potential for the enrichment of more organic pollutants from real samples.

制备了具有良好孔隙率，高表面积和强磁性的磁性卟啉基多孔有机聚合物（M-PPOP），并将其用作吸附剂，用于磁性固相萃取苯脲类除草剂（甲草隆，单亚麻隆，氯甲苯和丁隆）。从瓶装葡萄汁和番茄样品中提取，然后通过高效液相色谱法测定。在优化的条件下，开发的方法具有良好的线性范围，低检测限，相对标准偏差低（<6.8％），方法回收率在80.8％和117％之间，并且富集系数高（51-106）。为了更好地阐明M-PPOP对分析物的吸附，M-PPOP对不同类型的有机化合物（包括多环芳烃）的萃取性能，对苯脲类杀虫剂，苯脲类除草剂和酚类进行了研究。结果表明，M-PPOP与分析物之间的π堆积，氢键和疏水相互作用在吸附中起主要作用。结果表明，M-PPOP材料具有从真实样品中富集更多有机污染物的巨大潜力。