萘普生分子印迹拆分及亲和吸附平衡常数的测定

分子印迹 (Molecular imprinting)是一种新的、很有发展潜力的分离技术 1～ 3 ] .该技术已成功地用于氨基酸、糖类及其衍生物和药物的手性分离 .萘普生是一种重要的非甾体消炎、解热和镇痛药 ,为了减少给药量和对人体产生的毒副作用 ,必须对其进行手性拆分 . Mosbach等 4 ] 曾以 4-乙烯基吡啶为功能单体 ,利用分子印迹对外消旋萘普生进行了手性拆分 ,但 4-乙烯基吡啶使用前需经过减压蒸馏 ,使用不便 . Haginaka等 5～ 7] 也采用 4-乙烯基吡啶为功能单体 ,以 (S) -萘普生为模板制得了均一粒径的分子印迹介质 .尽管分子印迹分离技术发展…

Chiral Separation on Naproxen and Determination of Chromatography Equilibrium Constant Using Molecular Imprinting

A chiral stationary phase for naproxen separation was prepared by means of molecular imprinting, in which acrylamide and ethylene glycol dimethacrylate were copolymerized in the presence of template. Racemic naproxen was efficiently resolved on the molecular imprinting polymer. The concentration of acetic acid in the mobile phase was optimized. A new affinity chromatography model using molecular imprinting was established by which the agreement between the simulated and experimental results was obtained. The results suggested that affinity chromatography mechanism controled the retention in this system.