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US 5,194,333 AGranted
Packing material for reversed phase chromatography and process for its preparation
AssigneeTosoh Corporation
InventorsTadao Ohnaka, Katsuo Komiya, Hiroyuki Moriyama
Life of this patent
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Abstract
A packing material for reversed phase chromatography, which comprises silica gel with its entire surface substantially coated with repeating units of a polycarbosilane of the formula (I): ##STR1## wherein R.sub.1 is an octyl group, an octadecyl group or a phenyl group, R.sub.2 is a methyl group or a methylene group, and n is a positive integer.
Claims6
A packing material for reversed phase chromatography, which comprises silica gel with its surface coated with repeating units of a polycarbosilane of the formula (I):
- ##STR8## wherein R.sub.1 is an octyl group, an octadecyl group or a phenyl group, R.sub.2 is a methyl group or a methylene group, and n is a positive integer, wherein the silica gel has pores having a pore size of from 20 to 10,000 .ANG..
Dependencies are inferred from the claim text.