Modified graphene-silica as a sorbent for in-tube solid-phase microextraction coupled to liquid chromatography-tandem mass spectrometry. Determination of xanthines in coffee beverages
Karen Mejía‐Carmona, Fernando Mauro Lanças
Topics & Concepts
ChemistryChromatographySolid-phase microextractionSorbentMass spectrometryTandem mass spectrometryTandemGas Chromatography/Tandem Mass SpectrometryLiquid chromatography–mass spectrometryGas chromatography–mass spectrometryAdsorptionOrganic chemistryMaterials scienceComposite materialAnalytical chemistry methods developmentCoffee research and impactsAdvanced Chemical Sensor Technologies