| abstract |
The invention relates to a preparation method, application and use method of capsaicin molecularly imprinted magnetic beads, belonging to the field of food analysis sample pretreatment; the invention mainly uses magnetic Fe 3 O 4 microspheres as carriers, and uses a coupling agent containing double bonds to couple Surface modification is carried out; then the magnetic microspheres modified by double bonds are mixed and copolymerized with capsaicin template molecules, functional monomers, coupling agents, initiators and dispersants; the above-mentioned synthetic magnetic microspheres are washed with methanol-acetic acid solution Take off, wash away the template molecules, wash with water and alcohol for use. The capsaicin molecularly imprinted magnetic beads prepared by the invention can selectively and efficiently extract and separate capsaicin in waste oil, and provide a kind of sample pretreatment for subsequent detection by HPLC, HPLC-MS, Raman and other instruments. technology to identify waste oil. |