Record number :
1668863
Title of article :
Preparation and application of surface molecularly imprinted silica gel for selective extraction of melamine from milk samples
Author/Authors :
Cheng، نويسنده , , Wenjing and Liu، نويسنده , , Zhujuan and Wang، نويسنده , , Yan، نويسنده ,
Issue Information :
ماهنامه با شماره پیاپی سال 2013
Pages :
7
From page :
396
To page :
402
Abstract :
Highly selective molecularly imprinted layer-coated silica gel (MIP@SiO2) for melamine (MEL) was prepared by the surface molecular imprinting technique on the supporter of silica gel. Non-imprinted polymer layer-coated silica gel (NIP@SiO2) and bulk molecularly imprinted polymer (MIP) were also prepared for comparison. Characterization and performance tests of the obtained products revealed that MIP@SiO2 not only had excellent selectivity to the target molecule MEL compared with NIP@SiO2, but also displayed absorption capacity superior to MIP due to the molecular recognition sites on the surface of silica gel. As the MIP@SiO2 were adopted as the adsorbents of solid-phase extraction for detecting MEL in milk samples, the recoveries of spiked samples ranged from 75.6% to 96.8% with the relative standard deviation of spiked samples less than 10%, which reveals that the MIP@SiO2 were efficient SPE adsorbents for melamine.
Keywords :
Silica gel , Solid-phase extraction , Melamine , Molecularly imprinted polymer
Journal title :
Talanta
Journal title :
Talanta
Serial Year :
2013
Link To Document :
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