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一、前言蒽和菲是同分异构体,它们的物理性质近似(表1)。在气相色谱分析中使用各向同性固定液时,即使用填充和毛细管柱也难于分离。近年来,国内外都已使用液晶作为固定
I. INTRODUCTION Anthracene and phenanthrene are isomers and their physical properties are similar (Table 1). When using isotropic fixatives in gas chromatography, separation is difficult with packed and capillary columns. In recent years, liquid crystal has been used as a fixture at home and abroad