The Development of Stationary Phase Supports For Liquid Chromatography. I. Examination of the Pore Structure of Zirconia-Silica Composites Using Size Exclusion Chromatography

In this first part of a two part series, the pore structure of zirconia-silica composite stationary phase supports was examined using size exclusion chromatography. The study found that the pore structure was more complex than pure zirconia surfaces. With these composite materials, the pore dimensio...

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Bibliographic Details
Published inJournal of liquid chromatography & related technologies Vol. 21; no. 12; pp. 1749 - 1765
Main Authors Shalliker, R. A., Douglas, G. K.
Format Journal Article
LanguageEnglish
Published Colchester Taylor & Francis Group 01.07.1998
Taylor & Francis
Subjects
Analytical chemistry
Chemistry
Chromatographic methods and physical methods associated with chromatography
Exact sciences and technology
Other chromatographic methods
Pore structure
HPLC chromatography
Temperature effect
Experimental study
Fabrication property relation
Porous material
Silica
Composite material
Calcining
Gel permeation chromatography
Pore size
Medium effect
Efficiency
Concentration effect
Silicon Oxides
Silica gel
Fabrication structure relation
Zirconium Oxides
Porosity
Stationary phase
Sodium Chlorides
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Summary:In this first part of a two part series, the pore structure of zirconia-silica composite stationary phase supports was examined using size exclusion chromatography. The study found that the pore structure was more complex than pure zirconia surfaces. With these composite materials, the pore dimensions are primarily dependent on the concentration of the silicon doping, the temperature of calcination, and the presence of salts during calcination. Silicon concentration influences the phase crystallization which, in turn, alters the temperature at which micropores transform to mesopores. Calcination in the presence of sodium chloride increased the surface area and pore volume of the support.
ISSN:1082-6076
1520-572X
DOI:10.1080/10826079808005889