Porous organic polymer adsorption material, preparation method and application thereof

The invention discloses a porous organic polymer solid-phase extraction adsorption material and application thereof in analysis of veterinary drug residue. The material adopts a hydroxyl-containing porous organic polymer as the matrix, and phosphoric acid molecules are loaded on the hydroxyl site of the polymer. The porous polymer material has large specific surface area and high content of functional groups, improves the enrichment efficiency in pretreatment of veterinary drug residue samples in food, and also reduces the matrix interference in target detection. Compared with the traditionalsolid-phase extraction materials, the material has the advantages of good water resistance and physical and chemical stability, difficult loss of functional groups, long service life, and reusability. 本发明公开种多孔有机聚合物固相萃取材料及其在兽药残留分析中的应用。该材料以含羟基多孔有机聚合物为基质，在聚合物羟基的位点上负载磷酸分子；该多孔性聚合物材料比表面积大，功能基团含量高，提高了食品中兽药残留样品前处理的富集效率，并降低了目标物检测的基质干扰。与传统的固相萃取材料比，本材料的耐水性以及理化稳定性好，功能基团不易流失，材料使用寿命长，可重复使用。