Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 3, 2007
Patent Application Number
10710937
Date Filed
August 13, 2004
Patent Primary Examiner
Patent abstract
A porous silica particle suitable can be used in zwitterionic high performance liquid chromatography. The particle comprises covalently bound zwitterionic groups grafted through a polymerization reaction. A hydrophilic column packing material suitable for use as a stationary phase in zwitterionic high performance liquid chromatography may comprise porous silica particles. The particles may comprise covalently bound zwitterionic groups. Methods for manufacturing and applying the silica particles exist.
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