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自从1963年Kelker把液晶用作气相色谱固定液以来已有24年的历史,经过研究和使用的液晶固定液有200多种,在分离位置异构体方面获得了很大的成功,特别是对多环芳烃异构体的分离得到很好的效果。但是低分子液晶用于毛细管柱时有两个致命的弱点:在高温下挥发性大;液膜在毛细管壁上不稳定。因此1982年Finkelmann等人首次把聚硅氧烷侧链高分子液晶用作气相色谱固定液,
Kelker has been using liquid crystals for 24 years since 1963 as a stationary phase for liquid chromatography and has studied and used more than 200 liquid crystal fixatives and has achieved great success in separating positional isomers, Polycyclic aromatic hydrocarbons separation is very good results. However, there are two fatal weak points when low molecular weight liquid crystal is used for capillary columns: high volatility at high temperatures; liquid film is not stable on capillary walls. Therefore Finkelmann et al 1982 for the first time the polysiloxane side chain polymer liquid crystal stationary phase for the gas chromatography,