✦ LIBER ✦

Fused silica packed capillary columns in supercritical fluid chromatography

✍ Scribed by Wenbao Li; Abdul Malik; Milton L. Lee

Publisher: John Wiley and Sons
Year: 1994
Tongue: English
Weight: 513 KB
Volume: 6
Category: Article
ISSN: 1040-7685
DOI: 10.1002/mcs.1220060605

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✦ Synopsis

Abstract

Packed capillary columns provide advantages of low flow rates, moderate sample capacities and loadabilities, short analysis times, high detectabilities, and the possibility of using a wide variety of commercially available stationary phases. This type of column is finding increasingly more applications in a variety of fields. In this paper, we report detailed studies using relatively long (0.5 to 10 m) packed capillary columns in SFC. Characteristics such as packing density and column stability are reported, as well as efficiency, resolution, and pressure drop for the different columns. It was found that densely packed capillary columns prepared using supercritical CO~2~ as the slurry fluid are more stable and generally have better performance than conventional solvent slurry packed columns.

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