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Graphene oxide-based composite monolith as new sorbent for the on-line solid phase extraction and high performance liquid chromatography determination of ß-sitosterol in food samples

Food ChemistryNew SorbentChemical EngineeringSolvent ExtractionEngineeringSupercritical Fluid ChromatographySeparation ScienceBioanalysisGrapheneAnalytical ChemistryFood SamplesLiquid ChromatographyChemistryChromatographic AnalysisMedicineChromatography