## Abstract Several commercially available and home‐made reversed phase packing materials packed in capillary columns are evaluated for SFC with pure CO~2~ as mobile phase. Anilines and polycyclic aromatic hydrocarbons are used as test mixture. Some “on column endcapping” experiments are evaluated.
In-situ deactivation of packed columns for SFC
✍ Scribed by Zhang, Shigang ;Schindler, Brigitte ;Nicholson, Graham ;Bayer, Ernst
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 237 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0935-6304
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✦ Synopsis
Abstract
Residual adsorptive activity of reversed phase (RP) column packings used in supercritical fluid chromatography (SFC) can be significantly reduced by a dynamic in‐situ silanization with diphenyltetramethyldisilazane (DPTMDS). RP‐materials thus deactivated were characterized both chromatographically and by solid‐phase ^29^Si NMR.
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