Journal of Agricultural and Food Chemistry · 1998 · 47 citations · 17 references
PharmacyChemistryFood ScienceAnalytical ChemistryChromatographic AnalysisFood AnalysisAnalytical ChromatographyChromatographyChromatography CouplingGas ChromatographyLipid AnalysisLiquid ChromatographyCapillary ChromatographyCapillary Gas ChromatographyDirect InjectionEdible Oil AnalysisReverse-phase Liquid ChromatographyReversed-phase ChromatographyReversed-phase Liquid ChromatographySterol Composition
On-line coupling of reversed-phase liquid chromatography and gas capillary chromatography (RPLC-GC) using a programmed temperature vaporizer (PTV) as interface is used for the direct and simultaneous analysis of free sterols, tocopherols, and squalene of edible oils by direct injection (that is, without the need for prior enrichment of the sample). The proposed method allows large volume fractions of water methanol eluents to be transferred into the GC system, 2000 μL/min being the speed of sample introduction. The overall procedure including LC preseparation, transfer from LC to GC, and GC analysis takes <1 h. Keywords: On-line coupled RPLC-GC; sterols; tocopherols; squalene; direct analysis; edible oils
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Squalene recovery from olive oil deodorizer distillates
Paolo Bondioli, Carlo Mariani, A. Lanzani et al. · Journal of the American Oil Chemists Society · 1993 · 131 citations