The invention provides a pseudo template magnetic molecule imprinted
polymer for
pesticide residue detection of a waterborne sample. The
polymer Fe3O4@MIPs is prepared by comprising the steps that
oleic acid-coated Fe3O4 nanoparticles, pseudo template molecules and functional monomers MAA are added into pore-forming agents, and after self-
assembly is performed, cross-linking agents EGDMA and initiating agents AIBN are added in the mixture; after the cross-linking agents EGDMA and the initiating agents AIBN are completely dissolved, the mixture is dropwise added into
polyvinyl pyrrolidone water solutions to complete a
polymerization reaction; after Fe3O4@MIPs containing the pseudo template molecules is separated through an external
magnetic field, the pseudo template molecules are removed,
vacuum drying is performed, and the
polymer is prepared. According to the polymer, the Fe3O4 nanoparticles are coated with
oleic acid, and therefore the agglomeration phenomenon in the Fe3O4 preparation process is effectively avoided; a
molecular imprinting polymerization reaction is performed by taking a compound of which the structure is similar to that of target
pesticide as the pseudo template molecules, and therefore the phenomenon that a high result or a
false positive result caused by the template leakage problem is effectively avoided; the target
pesticide is easily and quickly separated from and brought away from the liquid sample through the
magnetism of the polymer; the polymer is high in selectivity, little in interference, easy to operate, capable of being reused after being eluted, suitable for being used in the waterborne sample and good in effect.