Gas chromatography of polar compounds using a non-polar liquid phase

✍ Scribed by E.C. Ormerod; R.P.W. Scott

• Publisher: Elsevier Science
• Year: 1959
• Tongue: English
• Weight: 337 KB
• Volume: 2
• Category: Article
• ISSN: 1873-3778
• DOI: 10.1016/s0021-9673(01)86258-0

✦ Synopsis

The esamination of strongly polar solutes by gas-liquid chromatography (G.L.C.), using non-polar liquid phases, invariably results in poor separations, clue to the adsorption of the polar compounds on the surface of the support. This adsorption effect manifests itself by the production of asymmetric peaks with sharp "fronts" and very diffuse "tails". Both Celite and ground insulating-brick, the supports commonly used in G.L.C., eshibit this effect, although the adsorption that occurs with Celite can be reduced slightly by treatment with acid and alkali.

This adsorption effect has been overcome by S~~RENSEN AND %LTOI+ and by KWANTES AND RIJNDERS *, by using metal lielices as the support. Symmetrical peaks were obtainecl but the column resolution was poor due to the open nature of the support allowing considerable molecular diffusion?. .to take place in the column. The work of these authors indicated that a support with a metallic surface was preferable for use in G.L.C. and this paper describes a nlethod f&r coating brick dust with both