✦ LIBER ✦

Supercritical fluid injection of high-molecular-weight polycyclic aromatic compounds in capillary supercritical fluid chromatography

✍ Scribed by Jackson, W. P. ;Markides, K. E. ;Lee, M. L.

Publisher: John Wiley and Sons
Year: 1986
Tongue: English
Weight: 466 KB
Volume: 9
Category: Article
ISSN: 0935-6304
DOI: 10.1002/jhrc.1240090404

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✦ Synopsis

A sample introduction system for capillary supercritical fluid chromatography, which allows the dissolution of the sample in the supercritical mobile phase before being introduced into the column, was constructed and evaluated. Supercritical n-pentane was shown to solvate high-molecular-weight polycyclic aromatic compounds that could not be solvated using typical liquid solvents. In addition, split injection of a supercritical fluid solution was found to be more reproducible than split injections of a liquid solution. The potential of such an injection system was demonstrated, although further developments are needed in order to make the technique of practical utility.

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