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Mesoporous silica based MCM-41 as solid-phase extraction sorbent combined with micro-liquid chromatography–quadrupole-mass spectrometry for the analysis of pharmaceuticals in waters

Solvent ExtractionChemical EngineeringEngineeringSolid-phase Extraction SorbentMass SpectrometryMesoporous SilicaAnalytical ChemistryLiquid ChromatographyChemistryMicro-liquid Chromatography–quadrupole-mass SpectrometryMedicineChromatographyWater AnalysisDrug Analysis