Comparison of diphenylethane derivatives with lateral substituents as liquid-crystalline stationary phases in gas chromatography

✍ Scribed by A. Ziòłek; Z. Witkiewicz; R. Dabrowski

• Publisher: Elsevier Science
• Year: 1984
• Tongue: English
• Weight: 816 KB
• Volume: 299
• Category: Article
• ISSN: 1873-3778
• DOI: 10.1016/s0021-9673(01)97829-x

✦ Synopsis

The separating properties of liquid-crystalline stationary phases with the same main chain but differing in the presence or absence of lateral substituents were compared. The effect of the kind and position of the lateral substituent on the effectiveness of separation was studied. Mixtures of polynuclear aromatic hydrocarbons and isomers of naphthalene and benzene derivatives and of other compounds were separated. Some relationships were found to exist between the presence of the lateral substituents, their position in the molecule and their polarity and the effectiveness of the separation of the mixtures of various groups of compounds.