## Abstract The effects of the pressure drop across the column on retention and efficiency in SFC have been studied. Numerical methods are described which enable the prediction of holdβup time and pressure drop in both packed and open tubular columns. Predictions of both holdβup time and pressure d
Effect of the pore structure of silica gel on retention behaviour in pressure programming supercritical fluid chromatography
β Scribed by Akira Nomura; Joseph Yamada; Kin-Ichi Tsunoda
- Book ID
- 108336164
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 463 KB
- Volume
- 448
- Category
- Article
- ISSN
- 1873-3778
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Calculations have been carried out of the average densities and capacity factors in supercritical fluid chromatographic (SFC) columns, taking into account the effect of the pressure drop along the column using, as examples, carbon dioxide as the mobile phase and phenanthrene as the solute. The value
The effect of the geometrical structure of silica gels on retention volumes, band broadening and separation has been investigated. The retention times of nitrobenzene, aniline, diphenylamine and nitronaphthalene on hydrosylated and dehydroxylated silica gels have been measured. It has been shown tha