A novel cyromazine molecularly imprinted polymeric microspheres were prepared by two-step seed swelling polymerization method in aqueous system. The imprinting process was carried out using polystyrene particles as the seed, cyromazine as the template molecule, methacrylic acid as the functional monomer, ethylene glycol dimethacrylate as the cross-linker. Factors affecting the particle morphologies including emulsifier, dispersant, the water-oil ratio and etc., were optimized in order to obtain the molecularly imprinted polymeric microspheres w...