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《Chemistry》 2011-12
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Study of Core-shell Structural Amino Acids Molecularly Imprinted Separation Medium

Su Liqiang1,Liu Faqiang1,Ning Zhenxin1,Zhang Weibing2(1College of Chemistry and Chemical Engineering,Qiqihar University,Qiqihar 161006;2 East China University of Science and Technology,Shanghai key laboratory of Functional Materials Chemistry,Shanghai 200032)  
The modified silica gel core with ending double bond was synthesized by the reaction of the Si-OH on the silica gel surface with 3-glycidoxypropyltrimethoxysilane,then the core-shell structural amino acids molecularly imprinted separation medium was prepared through coating the molecularly imprinted polymers on the surface of modified silica gel with N-Boc-L-Trp as the template molecule by molecular imprinting technology.The as-prepared imprinted polymers had good adsorbability for N-Boc-L-Trp,the amount of saturated adsorption and imprinting efficiency were 85.96mg/g and 70.67% respectively,which was obviously higher than that of the product obtained from the classical bulk polycondensation.The template molecule with enantiomers was fast baseline separated by loading the as-prepared molecularly imprinted separation medium into high performance liquid chromatographic column with separating degree 1.64.
【Key Words】： Molecularly imprinting N-Boc-L-Trp Chiral Separation
【Fund】： 国家“九七三”计划项目(2007CB914100);; 国家自然科学基金项目(20675083);; 黑龙江省自然科学基金项目(B200911)资助
【CateGory Index】： O631.3
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