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Gas chromatographic–mass spectrometric determination of alkylphosphonic acids from aqueous samples by ion-pair solid-phase extraction on activated charcoal and methylation

Chemical EngineeringChemical MeasurementEngineeringGas ChromatographyActivated CharcoalMass SpectrometryIon-pair Solid-phase ExtractionOrganic ChemistryAnalytical ChemistryLiquid ChromatographyChemistryAlkylphosphonic AcidsChromatographic AnalysisMedicineChromatographyDrug Analysis