Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Patent
1999-01-04
2000-12-05
Le, H. Thi
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
2101983, 210282, 2105021, 210504, 210506, 210616, B32B 516, B01D 2400, B01D 3906
Patent
active
061564311
ABSTRACT:
A treated silica composition particularly useful for solid phase extraction in chemical analysis, the silica having both phenyl and propylsulfonic acid functional groups; a cartridge for extraction which comprises the treated silica; a column for extraction which comprises the treated silica; and a method for solid phase extraction which uses the silica composition. A method for analysis of gamma hydroxybutyric acid is also disclosed which uses the treated silica.
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August Thomas F.
Kitchen Chester J.
Ozanich William L.
Telepchak Michael J.
Bolcsak James W.
Koons, Jr. Robert A.
Le H. Thi
United Chemical Technologies Inc.
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