两种β-环糊精衍生物混合GC固定相的研究

研究两种β－环糊精衍生物－β－混合ＧＣ固定相的分离性能。用毛细管气相色谱法研究苯的位置异构体在两种环糊精混合固定相上的分离情况，从柱效，固定相的结构及其与溶质的作用方式讨论两种环糊精混合固定相的分离机制。

Investigation on the GC Mixed Stationary Phase of Two Cyclodextrin Derivatives

The GCseparation properties of the mixed stationary phase of two cyclodextrin derivatives(permethy1-β-cyclodextrin and heptakis(2,6-di-O-pentyl-3-O-allyl)-β-cyclodextrin) werestudied using benzene positional isomers. The separation mechanism on mixed stationaryphase was discussed from column efficiency, structure of stationary phase and theinteraction mode between stationary phases and solute. Most of positional isomers ofdisubstituted benzene were well separated on the mixed stationary phase column, with theseparation of bromotoluene, nitrotoluene etc. on the mixed stationary phase columndemonstrating synergistic effects. The GC properties of the mixed stationary phase of twocyclodextrin derivatives are different from that of the conventional mixed stationaryphases.