Preparation of molecular imprinting polymer and method for separating clenobuterol hydrochloride by using the same

The invention relates to the preparation of molecular imprinted polymer in the technical field of chemical engineering and a method for separating clenbuterol hydrochloride with the molecular imprinted polymer. In the preparation method, clenbuterol, methacrylic acid, ethylene dimethacrylate are mixed according to the mol ratio of 1: 2-6: 15, dissolved in a pore-foaming agent, placed in an ampoule, added with an initiator, processed by ultrasonic wave, fed in nitrogen, sealed in vacuum, and then carried out thermal-initiated polymerization so as to obtain bulk polymer; and the bulk polymer is taken out, crushed, sieved and separated; after the polymer is dried, soxhlet extraction, high-temperature processing and solvent elution are carried out to get rid of a template. In the separation method, the molecular imprinted polymer homogenate is filled in a small column of polypropylene solid phase extraction, and the upper and lower ends of the filling material are respectively added with a sieve plate of polyethy