Results 11 to 20 of about 199,551 (268)
Isotope effects in gas–liquid chromatography of steroids
Journal of Lipid Research, 1965 When gas–liquid chromatography was performed with steroids containing H3 and C14, the H3/C14 ratio of the effluent was higher at the beginning and at the tail of the steroid peak.
Marvin A. Kirschner, Mortimer B. Lipsett
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Hyocholic acid as internal standard for quantitation of human fecal bile acids
Journal of Lipid Research, 1973 After hyocholate is added to a fecal homogenate, the bile acids are extracted, purified by thin-layer chromatography, and quantitated by gas–liquid chromatography as methyl ester trifluoroacetates on QF-1 columns.
M. T. Ravi Subbiah
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Journal of Lipid Research, 1971 It is shown that methanolysis of dihydrosterculoyl lecithin with boron trifluoride–methanol introduces artifacts which are absent if the methyl ester is prepared by saponification of the lipid followed by treatment with diazomethane.
E.A. Dawidowicz, T.E. Thompson
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Gas-liquid chromatographic analysis of free long-chain aldehydes
Journal of Lipid Research, 1969 Quantitative results are reported for gas-liquid chromatography of mixtures of free tetra-, hexa-, and octadecanals and cis-9-octadecenal on polar and nonpolar liquid phases.
Randall Wood, R.D. Harlow
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Journal of Lipid Research, 1962 The conversion of glyceryl esters to derivatives suitable for gas-liquid chromatography was accomplished by hydrogenolysis with lithium aluminum hydride followed by direct acetylation of lithium aluminum alcoholates with acetic anhydride. Fatty acids and
Lloyd A. Horrocks, David G. Cornwell
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Investigation of Technological Operations Affecting the Determination of Concentration of Ionol Additive in Insulating Oil in High-Voltage Equipment [PDF]
Problems of the Regional Energetics, 2018 Ionol oxidation inhibitor level control is included into normative indicators list for diagnostics of internal insulation condition of any oil-filled high voltage device.
Korobeynikov S.M., Lyutikova M.N.
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Gas-liquid chromatography-mass spectrometry of synthetic ceramides
Journal of Lipid Research, 1969 Two series of ceramides with either sphingosine (sphing-4-enine) or sphinganine as base and with one of the saturated fatty acids C16, C18, C20, C22, C24, C26, or oleic acid were analyzed as the 1,3-di-O-trimethylsilyl ether derivatives by gas ...
Bengt Samuelsson, Karin Samuelsson
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Improved conditions for gas-liquid chromatography of triglycerides
Journal of Lipid Research, 1966 Improved conditions for gas-liquid chromatography of triglycerides are reported. Triglycerides of bovine colostrum and rapeseed oil have been analyzed under these conditions.
A. Kuksis, W.C. Breckenridge
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Journal of Open Research Software, 2016 This paper aimed to develop a standalone application for optimizing flow rates in liquid chromatography (LC), gas chromatography (GC) and supercritical fluid chromatography (SFC). To do so, Van Deemter’s equation, Knox’ equation and Golay’s equation were
Joris Meurs
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The unsaturated fatty acids in menhaden body oil: the C18, C20, C22 series*
Journal of Lipid Research, 1960 Complete structural characterization of the C18, C20, and C22, unsaturated acids of menhaden body oil is described. The present report brings to 23 the number of chemically defined unsaturated acids in this oil, accounting for 95 per cent of the total ...
W. Stoffel, E.H. Ahrens, Jr.
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