## Abstract Packedโcolumn supercritical fluid chromatography (pSFC) is a fast separation technique that combines the properties of HPLC and GC. pSFC with carbon dioxide as the mobile phase and packed silica column as the stationary phase possesses the properties of normal phase mechanism; however,
Application of packed column supercritical fluid chromatography to the analysis of barbiturates
โ Scribed by Roger M. Smith; M.Marsin Sanagi
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 319 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0731-7085
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โฆ Synopsis
The analysis of barbiturates using packed column supercritical fluid chromatography (SFC) has been investigated. The separations were carried out on either an ODS bonded silica or polystyrene-divinylbenzene polymer column with carbon dioxide as the mobile phase and flame ionisation detection. All the barbiturates were strongly adsorbed on the ODS-silica column, but reasonable separations were obtained by using the polymer column.
๐ SIMILAR VOLUMES
## Abstract A comprehensive twoโdimensional supercritical fluid chromatographic system with conventional packed columns was developed. The system used a computerโcontrolled tenโport valve, a capillary trap, and a restrictor. The mobile phase was pure carbon dioxide. The first dimension column was o
Newly developed perfluorinated polyethers, HOCH O CF O CF 2 2 p 2 . x ลฝ . CF O CH OH Z-Dols , were separated using packed capillary column supercrit-2 q 2 ลฝ . ical fluid chromatography SFC . A fluorocarbon-bonded stationary phase, Fluofix ลฝ . 120N 5 m and 120 A , was used as a packing material and