基于七元瓜环衍生物的毛细管气相色谱柱的制备及分离性能研究  

Preparation and Separation Performance of Capillary Gas Chromatographic Column Based on Cucurbit[7]uril Derivatives

作　　者：董美玉 冉金凤 王莎莎 董南[1] DONG Meiyu;RAN Jinfeng;WANG Shasha;DONG Nan(School of Chemistry and Chemical Engineering,Guizhou University,Guiyang 550025,China)

机构地区：[1]贵州大学化学与化工学院,贵州贵阳550025

出　　处：《贵州大学学报（自然科学版）》2021年第6期35-39,49,共6页Journal of Guizhou University:Natural Sciences

基　　金：国家自然科学地区基金资助项目(21665005);贵州省科技计划资助项目(黔科合基础-ZK[2021]一般054)。

摘　　要：合成了4-乙烯苄氧基七元瓜环并与端羟基聚二甲基硅氧烷一起作为固定相,溶胶-凝胶法制备了柱长10 m的石英毛细管气相色谱柱。该色谱固定相的平均极性为121,柱效为1231 N/m。该色谱柱具有良好的分离重复性,日内精密度的相对标准偏差(relative standard deviation,RSD)小于0.14%,日间精密度的RSD小于0.33%,不同色谱柱之间重复性的RSD小于0.65%。该色谱柱对芳香位置异构体、正构烷烃、酯类、酮类、醇类以及Grob试剂的混合物均具有良好的分离选择性。A 10 m quartz capillary gas chromatographic column was prepared by sol-gel method with 4-ethylbenzoxy cucurbit[7]uril and hydroxyl-terminated polydimethylsiloxane as stationary phase.The average polarity of the stationary phase was 121,and the column efficiency was 1231 plates/m.The homemade column exhibited good separation repeatability,its relative standard deviation(RSD)of intra-day was less than 0.14%,inter-day precision was less than 0.33%,and the RSD of reproducibility between columns was less than 0.65%.The column has good selectivity for the separation of aromatic isomers,n-alkanes,esters,ketones,alcohols and mixtures of Grob reagents.

关 键 词：4-乙烯苄氧基七元瓜环 端羟基聚二甲基硅氧烷 气相色谱 固定相 溶胶-凝胶方法 

分 类 号：O657.7[理学—分析化学]