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  • Title: Supercritical fluid chromatographic determination of cholesterol and cholesteryl esters in serum on ODS-silica gel column.
    Author: Nomura A, Yamada J, Takatsu A, Horimoto Y, Yarita T.
    Journal: Anal Chem; 1993 Aug 01; 65(15):1994-7. PubMed ID: 8372964.
    Abstract:
    Cholesterol and cholesteryl esters in human serum were determined by supercritical fluid chromatography on an inert ODS-silica gel column using supercritical carbon dioxide as a mobile phase without a modifier. Chromatograms were obtained by monitoring the eluent simultaneously with an FID and UV detector at the wavelength of 190 nm. The retention behavior of cholesterol and cholesteryl esters was investigated in terms of the density of CO2 mobile phase. The separation mode was found to be reversed phase, as in liquid chromatography. The amounts of cholesterol and cholesteryl esters extracted from human serum reference material (NIST SRM 909) were determined individually using cholesteryl laurate as an internal standard to give good agreement of total cholesterol with the value certified by NIST.
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