A chromatographic study of the Lewis acid-base chemistry of zirconia surfaces

Journal Article · Tue Jan 01 04:00:00 EST 1991 · Journal of Liquid Chromatography; (United States)

DOI:https://doi.org/10.1080/01483919108049363· OSTI ID:5633882

Blackwell, J A ^[1]; Carr, P W ^[2]

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1. 3M Co., Specialty Adhesives and Chemicals Div., Group Analytical Lab., St. Paul, MN (US)
2. Dept. of Chemistry, Inst. for Advanced Studies in Bioprocess Technology, Univ. of Minnesota, Minneapolis, MN (US)

This paper reports on the chromatographic properties of porous microparticulate zirconium oxide surfaces in aqueous media which are highly dependent upon the chemical composition of the eluent. In particular, retention is controlled by the type and concentration of hard Ligand exchange is the dominant mechanism for the retention of solutes which are Lewis bases. consequently, the capacity factor and plate height depend on both the thermodynamic and kinetic properties of whatever competing Lewis bases may be present in the eluent. These Lewis base eluent components act to control retention in two ways. They modify the net ligand exchange contribution to retention, and they serve as sites for secondary interactions, such as hydrogen bonding and hydrophobic interactions between solutes and the dynamic stationary phase.

• OSTI ID: 5633882
• Journal Information: Journal of Liquid Chromatography; (United States), Journal Name: Journal of Liquid Chromatography; (United States) Vol. 14:15; ISSN JLCHD; ISSN 0148-3919
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360207 -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105 -- Separation Procedures
400201 -- Chemical & Physicochemical Properties
AQUEOUS SOLUTIONS
CHALCOGENIDES
CHEMICAL BONDS
CHEMICAL COMPOSITION
CHEMICAL REACTION KINETICS
CHROMATOGRAPHY
DISPERSIONS
ELEMENTS
HYDROGEN
KINETICS
MATERIALS
MIXTURES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POROUS MATERIALS
REACTION KINETICS
SEPARATION PROCESSES
SOLUTES
SOLUTIONS
SURFACE PROPERTIES
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES