Polymer coated silica gel for high-performance liquid chromatography

Journal Article · Sat Dec 31 23:00:00 EST 1977 · J. Liquid Chromatogr.; (United States)

DOI:https://doi.org/10.1080/01483917808059996· OSTI ID:6232378

Cassidy, R M

The treatment of microparticulate silica gel with Carbowax 20M results in a stable and reproducible support which greatly reduces the irreversible adsorption effects observed for polyoxyethylene compounds on untreated silica gel. The selectivity of this coated support, likely a result of selective deactivation, permits the rapid separation of oligomers differing by <3% in molecular weight. The advantages and disadvantages of this support and a C/sub 18/ reversed-phase support for the separation and analysis of polyoxyethylene oligomers and their adducts are illustrated and discussed. 32 references, 7 figures.

• Research Organization: Chalk River Nuclear Labs., Ontario
• OSTI ID: 6232378
• Journal Information: J. Liquid Chromatogr.; (United States), Journal Name: J. Liquid Chromatogr.; (United States) Vol. 1:2; ISSN JLCHD
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ADDUCTS
ADSORBENTS
ALCOHOLS
CARBOWAX
CHEMICAL ANALYSIS
CHROMATOGRAPHY
COMPARATIVE EVALUATIONS
DEPOSITION
GLYCOLS
HYDROXY COMPOUNDS
LIQUID COLUMN CHROMATOGRAPHY
MECHANICAL STRUCTURES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OTHER ORGANIC COMPOUNDS
POLYACETALS
POLYETHYLENE GLYCOLS
POLYMERS
QUANTITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
SILICA GEL
SORPTIVE PROPERTIES
SUPPORTS
SURFACE COATING
SURFACE PROPERTIES
WAXES