Partition of supercritical n-pentane into SE-54 and SE-30 stationary phases in capillary supercritical fluid chromatography

1988 ◽  
Vol 330 (3) ◽  
pp. 246-249 ◽  
Author(s):  
Mustafa I. Selim ◽  
Joseph R. Strubinger
Keyword(s):  
Supercritical Fluid ◽  
Supercritical Fluid Chromatography ◽  
Stationary Phases ◽  
Capillary Supercritical Fluid Chromatography

ChemInform Abstract: Rational Design of Chiral Stationary Phases for Capillary Supercritical Fluid Chromatography.

ChemInform ◽  
2010 ◽  
Vol 23 (17) ◽  
pp. no-no
Author(s):  
B. E. ROSSITER ◽  
P. PETERSSON ◽  
D. F. JOHNSON ◽  
M. EGUCHI ◽  
J. S. BRADSHAW ◽  
...  
Keyword(s):  
Supercritical Fluid ◽  
Supercritical Fluid Chromatography ◽  
Rational Design ◽  
Stationary Phases ◽  
Chiral Stationary Phases ◽  
Capillary Supercritical Fluid Chromatography

Rational design of chiral stationary phases for capillary supercritical fluid chromatography.

1991 ◽  
Vol 32 (30) ◽  
pp. 3609-3612 ◽  
Author(s):  
Bryant E. Rossiter ◽  
Patrik Petersson ◽  
Deborah F. Johnson ◽  
Masakatsu Eguchi ◽  
Jerald S. Bradshaw ◽  
...  
Keyword(s):  
Supercritical Fluid ◽  
Supercritical Fluid Chromatography ◽  
Rational Design ◽  
Stationary Phases ◽  
Chiral Stationary Phases ◽  
Capillary Supercritical Fluid Chromatography

scholarly journals Development and Validation of Retention Models in Supercritical Fluid Chromatography for Impregnation Process Design

2021 ◽  
Vol 11 (15) ◽  
pp. 7106
Author(s):  
Miaotian Sun ◽  
Zeynep Ülker ◽  
Zhixing Chen ◽  
Sivaraman Deeptanshu ◽  
Monika Johannsen ◽  
...  
Keyword(s):  
Supercritical Fluid ◽  
Supercritical Fluid Chromatography ◽  
Stationary Phases ◽  
Retention Factor ◽  
Retention Mechanism ◽  
Retention Data ◽  
Retention Models ◽  
Retention Factors ◽  
Polar Solutes ◽  
Porous Matrices

The retention factor is the key quantity for the thermodynamic analysis of the retention mechanism in chromatographic experiments. In this work, we measure retention factors for moderately polar solutes on four silica-based porous matrices as stationary phases by supercritical fluid chromatography. Elution of the solutes is only possible with binary mixtures of supercritical carbon dioxide (sc-CO2) and modifier (methanol) due to the low polarity of pure sc-CO2. The addition of modifiers makes the retention mechanism more complex and masks interactions between solute and stationary phase. In this work, we develop and validate several retention models that allow the obtaining of retention factors in modifier-free sc-CO2. Such models pave the way for quantifying adsorption interactions between polar solutes and non-swellable porous matrices in pure sc-CO2 based on retention data obtained in sc-CO2/modifier mixtures. The obtained information will thereby facilitate the understanding and design of impregnation processes, which are often performed in modifier-free conditions.

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