Premium
Preparation and Evaluation of Melamine Molecularly Imprinted Polymers by Thermal‐ and Photo‐initiation Methods
Author(s) -
Zhang Yuping,
Na Qi,
Chen Na,
Chen Jun,
Zhou Xiaomao,
Bai Lianyang
Publication year - 2013
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201200382
Subject(s) - melamine , molecularly imprinted polymer , chemistry , polymer , polymerization , scanning electron microscope , solid phase extraction , chromatography , extraction (chemistry) , chemical engineering , organic chemistry , selectivity , materials science , composite material , catalysis , engineering
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 MIP thermal and MIP photo , respectively.