Extraction material comprising treated silica and method for determination of gamma-hydroxybutyrate
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United States of America Patent
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Dec 5, 2000
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N/A
app pub date -
Jan 4, 1999
filing date -
Jan 4, 1999
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Abstract
A treated silica composition particularly useful for solid phase extraction in chemical analysis, the silica having both phenyl and propylsulfonic acid functional groups; a cartridge for extraction which comprises the treated silica; a column for extraction which comprises the treated silica; and a method for solid phase extraction which uses the silica composition. A method for analysis of gamma hydroxybutyric acid is also disclosed which uses the treated silica.
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