Chromatographic packings comprising metal oxide/hydroxide...

Details Chromatographic packings comprising metal oxide/hydroxide... Chromatographic packings comprising metal oxide/hydroxide...

B - Operations, Transporting

01

J

252/23

B01J 20/32 (2006.01) G01N 30/48 (1990.01)

Patent

CA 1301143

Abstract of the Disclosure A chromatographic packing material is disclosed comprising a metal oxide/hydroxide particle having chemically bonded to reactive sites on a surface thereof, a monolayer of one or more phosphonic acids. The bond to the metal oxide/hydroxide surface is formed by reaction of the phosphorous-containing group of the phosphonic acid with the metal oxide/hydroxide surface, so that the carbon-containing or non-polar group of the phosphonic acid is oriented away from the metal oxide/hydroxide surface.

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