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二醇基硅胶毛细管整体柱的制备与应用

Chinese Journal of Spectroscopy Laboratory(2010)

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Abstract
综合应用溶胶-凝胶、分子修饰和环氧基在柱水解技术,制备了二醇基硅胶毛细管整体柱。考察了乙腈流动相对环氧基和二醇基整体柱保留行为的影响,评价了二醇基硅胶整体柱的色谱性能。结果表明,水解前的环氧基整体柱主要表现为疏水作用机理,水解后生成的二醇基硅胶整体柱固定相表面亲水性增强,表现为典型的亲水作用机理,多环芳烃非极性化合物保留因子的对数值降低,甲苯、N,N-二甲基甲酰胺、硫脲在6min内实现基线分离,柱效分别为90000,94000,99000塔板数/m,7种极性麻醉镇痛药得到较好分离。
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Key words
Monolithic Silica Column,Diol-Bonded,Hydrophilic Interaction,Hydrophobic Interaction
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