柯里拉京分子印迹聚合物的制备及其分子识别能力

分子印迹技术(molecularly imprinted technique,M IT)是一种对某一特定分子(模板分子)具有选择性的聚合物的合成方法,该聚合物称为分子印迹聚合物(molecularly imprinted polymer,M IP)。当模板分子与功能单体接触时会形成多重作用点,通过聚合过程被记忆下来。除去模板分子后聚合物中就形成了与模板分子空间构型相匹配的具有多重作用点的孔穴,对模板分子及其类似物具有选择识别特性。M IP的分子识别依靠其内部孔穴的形状、大小和化学功能基的分布,类似于酶和底物、抗体和抗原、受体和激素之间的作用,具有专一的选择性。由于M IP对目标…

Synthesis and molecule recognition capability of corilagin-molecularly imprinted polymer

To study the molecule recognition capability of corilagin-molecularly imprinted polymer (MIP) by the high performance liquid chromatography (HPLC), the molecularly imprinted polymer was synthesized by using corilagin as the template. Chromatographic performance of corilagin was investigated in different mobile phases. The MIP was investigated for the recognition of corilagin and its derivatives and other compounds in the same mobile phase. The MIP exhibited very high affinity for corilagin in the mobile phase of acetonitrile. The K' value will be reduced when the content of polar solvent increased in the mobile phase. The MIP has good selectivity in the mobile phase of acetonitrile-methanol (95:5), but it has no affinity for corilagin's derivatives. The corilagin-MIP has good selectivity for corilagin and it can be used in extracting corilagin and its analogs from herbs.