Solid phase extraction method for obtaining high-purity unsaturated compounds or derivatives of said compounds
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United States of America Patent
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Apr 29, 2008
Grant Date -
Aug 19, 2004
app pub date -
Jun 5, 2002
filing date -
Jun 5, 2001
priority date (Note) -
Expired
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Abstract
The invention relates to a novel extraction method for obtaining at least one unsaturated, optionally derivatized compound, from mixtures of said compounds with other less saturated constituents, e.g. for obtaining polyunsaturated fatty acids or the derivatives thereof from mixtures with saturated and/or less unsaturated, optionally derivatized fatty acids, by means of selective complexation with a cation exchanger which is partially or fully charged with silver ions, and subsequent decomplexation.
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