Abstract: Melamine imprinted polymers (MIPs) have been prepared using identical polymer formulation by both thermal- and photo-initiation method, respectively. Physical characterization of the polymers revealed that the different polymerization methods led to the slight differences in both polymer structures and performance by scanning electron microscope (SEM), infrared absorption (IR), and mercury analyzer (MA). Both MIPs were used as selective sorbents for the solid phase extraction (SPE) of melamine in milk powders, followed by the determination coupled to HPLC. The recoveries of melamine in spiked milk powders were obtained in the range of 92.4-97.7% and 94.6-99.7%, for both MIPthermal and MIPphoto, respectively
Template and target information: melamine
Author keywords: molecular imprinted polymers, Solid-phase extraction, Melamine, Thermal polymerization, Photo polymerization