Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9748788 | Journal of Chromatography A | 2005 | 5 Pages |
Abstract
Comparative gas chromatographic applications of two new liquid crystals called LCa and LCb and their equimolar mixture LCa + b were investigated. The thermal properties of LCa, LCb and LCa + b were established with differential scanning calorimetry (DSC) and polarizing microscopy. Differential scanning calorimetry of LCa + b showed that the melting or clearing temperature was intermediate between the corresponding temperatures of the pure compounds. Polarizing microscopy showed that the liquid crystal phase of A + B was nematic. The chromatographic separation abilities LCa, LCb and LCa + b were studied using fused silica capillary columns. Interesting analytical performances were obtained: isomeric separation of aromatics, polyaromatics, phenols.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
D. Bélaïdi, S. Sebih, S. Boudah, M.H. Guermouche, J.P. Bayle,