Extracolumn band broadening in multidimensional systems utilizing flow switching is clearly undesirable. In certain cases, i.e. capillary recycle gas chromatography, the success of an experiment is contingent on the minimization of pre-and postcolumn dispersion of the peaks. Knowledge of these sourc
Practical aspects of recycle gas chromatography with capillary columns
โ Scribed by D. Roberts; W. Bertsch
- Book ID
- 108337209
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 392 KB
- Volume
- 477
- Category
- Article
- ISSN
- 1873-3778
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๐ SIMILAR VOLUMES
## Abstract Sources leading to band broadening and peak distortion have been studied in a capillary column recycle system, based on a commercial microvalve. The ferrule system was a major contributor to band broadening. It was found that the quality of connections is very critical but the internal
## Abstract The present paper describes an automated system for preparative gas chromatography with glass capillary columns, controlled by a microprocessor. The effluent from the capillary column is divided by a pneumatically controlled splitter and any desired split ratio between traps and detecto
Polywax 655 by cold on-column, PT split, and PT splitless injection. A) Cold on-column. B) PT split. C) FTsplitless; 1.0 minute split time. D) pT splitless; 4.0 minute split time. Conditions: column, Al-clad 7 m X 0.25-mm i.d. X 0.1 -pm film, high-temperature methyl silicone; He carrier, 8 psig; spl