Solid surface texture suitable for a stationary phase for chromatography
AssigneeSouth African Inventions Development Corporation
InventorsVictor Pretorius, Jacobus D. Schieke
Life of this patent
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Abstract
A body having a siliceous surface provided with a surface texture comprising predominantly a plurality of siliceous microvilli or whiskers projecting from and grown onto the surface is useful as a solid stationary phase for chromatography.
Claims36
A body having a siliceous surface provided with a surface texture comprising siliceous microvilli projecting from and grown onto the surface, the density of microvilli being not less than 1.7.times.10.sup.3 microvilli per cm.sup.2.
A body having a siliceous surface provided with a surface texture comprising siliceous microvilli projecting from and grown onto the surface, said body being in the form of a tube, the inner surface of which is the siliceous surface provided with the surface texture comprising microvilli.
In an apparatus for chromatography comprising a column containing a solid surface bearing stationary phase exchange sites exposed to a moving phase, said surfaces having a surface configuration of a plurality of microvilli projecting into a flow path of the moving phase.
In a process for chromatographic separation which comprises subjecting a phase to chromatographic separation between a stationary phase and a moving gas or liquid mixture to effect separation of components, the improvement which comprises using as the stationary phase a surface provided with a plurality of microvilli projecting into the moving phase from and grown onto the surface.
Dependencies are inferred from the claim text.