A comparative analytical study of two new liquid crystals used as stationary phases in GC

作者：Benalia Mokhtar^*; Badiah Hadj Ahmed Akmed Yacine; Diedid Mebrouk; Meklati B Youcef; Al Dujaili A H; Ferkous Fouad

来源：Chromatographia, 2007, 66(7-8): 565-570.

DOI：10.1365/s10337-007-0345-0

• gas chromatography
• stationary phases
• liquid crystals

The investigation of the analytical properties of two new nematic sulphur-containing liquid crystals 5-(4-methoxyphenyl)-azophenyl)-2-butylthio-1,3,4-oxadiazole (Phase I) and 5-(4-(propoxyphenyl)-azophenyl)-2-butyl thio- 1,3,4-oxadiazole (Phase II) and which comprise units of 1,3,4oxadiazole instead of the aromatic cycles, was carried out by gas chromatography using glass capillary columns. For this purpose, many solutes belonging to various families and having different polarities and volatilities were injected. Comparison of the retention data of the studied components has shown that Phase II allowed a better separation than the other phase. The two liquid crystalline materials show a good separation of the studied isomers except for xylene.

• 出版日期2007-10