β-环糊精及其包结物作为气相色谱固定相分离混合物研究  

STUDY ON THE USE OF β-CYCLODEXTRIN AND ITS ENCLOSURE PRODUCTS AS STATIONARY PHASE IN THE GC-SEPARATION OF MIXED COMPOUNDS

作　　者：李光源 李宝惠[2] 张卉 陈鸿琪[2] 

机构地区：[1]临沂广播电视大学,临沂276000 [2]山东临沂师范学院 [3]山东省产品质量监督检验所

出　　处：《理化检验（化学分册）》2001年第8期360-363,共4页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

摘　　要：β 环糊精由于其特殊的分子结构 ,对某些物质具有包结作用 ,并形成较稳定的复合物 ,极化能力大大增强 ,在色谱中具有更大的保留值 ,气相色谱固定相分离混合物过程中 ,β 环糊精包结物较β 环糊精具有更强的分离能力。分别对β 环糊精及其包结了某些物质后的 β 环糊精作气相色谱固定相 ,对一系列低佛点有机化合物的分离和保留行为进行研究 ,比较了β 环糊精包结前后的不同的分离效果 。Cyclodextrin due to its special molecular structure, shows a characteristic behavior of enclosure action to some of substances, forming relatively stable complex compounds, resulting a remarkable enhancement of polar activity, and showing a larger retention value. When used as stationary phase in gas chromatography, the enclosure products of β cyclodextrin show still higher separation efficiency than the simple β cyclodextrin. It is reported in this paper that a thorough study on the separation efficiency and retention behavior of both the simple β cyclodextrin and its enclosure products used as stationary phases was made. The separation efficiencies of β cyclodextrin GC separation of some low boiling compounds and after the enclosure action were critically compared, and a preliminary discussion on the mechanisms of the formation of enclosure products and of the GC separation was also given.

关 键 词：气相色谱 Β-环糊精 包结物 固定相 分离 有机混合物 

分 类 号：O657.71[理学—分析化学] O658[理学—化学]