Silica materials
AssigneeThe Research Foundation of State University of New York
InventorLuis A. Colon
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Abstract
The present invention relates to silica materials and particles having surfaces which define an interior. The interior includes interior silicon atoms at least a portion of which is bonded to a substituted or unsubstituted alkyl moiety. In a preferred aspect of the present invention, the silica material also has surface silicon atoms to which are bonded substituted or unsubstituted alkyl moieties. A capillary tube coated on its inner surface with the silica material of the present invention is also disclosed. The silica materials of the present invention are resistant to degradation at high or low pH and are particularly useful as chromatographic stationary phases, especially for use in open tubular liquid chromatography and open tubular electrochromatography.
Claims26
A continuous mass of silica material having surfaces defining an interior, said interior comprising interior silicon atoms, wherein at least a portion of the interior silicon atoms is bonded to a substituted or unsubstituted alkyl moiety having from 6 to 32 carbon atoms.
A glass particle having a diameter of from about 0.3 .mu.m to about 500 .mu.m and having a surface defining an interior, said interior comprising interior silicon atoms, wherein at least a portion of the interior silicon atoms is bonded to a substituted or unsubstituted alkyl moiety.
Dependencies are inferred from the claim text.