POROUS SILICA MICROSPHERES HAVING SILANOL-ENRICHED AND SILANIZED SURFACES

A chromatographic material having improved crush resistance and a high level of surface silanol groups comprises porous silica microspheres having an average diameter of about 0.5 to about 35 mu m, substantially all of said microspheres having a diameter ranging from about 0.5 to about 1.5 times sai...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	KOEHLER, JUERGEN, KIRKLAND, JOSEPH JACK
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS TESTING THEIR RELEVANT APPARATUS TRANSPORTING
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