ISSN:
1040-7685
Keywords:
packing method
;
packed capillary column
;
column technology
;
packed capillary liquid chromatography
;
supercritical fluid
;
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The theoretical aspects of the preparation of packed capillary columns for chromatography have been studied. The variation of the mean bulk density of the columns prepared with carbon dioxide fluids in different physical states and under different supercritical fluid conditions has been investigated. A new concept of the packing formation during the preparation of packed capillary columns with supercritical CO2 as packing fluid is described. A mathematical model for column preparation is derived that indicates the importance of the sonication effect in packing process. This studies indicate that the column performances (density and efficiency) can be controlled by varying the packing conditions. The wall effect in packed capillary columns (the effect of the packing densities on the column efficiencies) and the explanation for the production of very long columns are also discussed. © 1995 John Wiley & Sons, Inc.
Additional Material:
7 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mcs.1220070311
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