Stationary phase, preparation thereof and chromatographic column containing same
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United States of America Patent
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Jul 5, 1988
Grant Date -
N/A
app pub date -
Nov 5, 1985
filing date -
Nov 6, 1984
priority date (Note) -
Expired
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Abstract
The invention relates to a method of preparing a stationary silica phase for the purpose of packing a chromatographic column intended for the liquid-phase separation of components. There are thus effected a first grafting with functional groups of the amine type, a complete hydrolysis of the stationary phase so grafted, and finally a further grafting with functional groups of the alkyl type, optionally substituted. A chromatographic column packed with the stationary silica phase can be used to separate the constituents of a petroleum product.
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