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On-line determination of carboxylic acids, aldehydes and ketones by high-performance liquid chromatography-diode array detection-atmospheric pressure chemical ionisation mass spectrometry after derivatization with 2-nitrophenylhydrazine

Carboxylic AcidsEngineeringChemical MeasurementMedicineMass SpectrometryOrganic ChemistryAnalytical ChemistryOn-line DeterminationChemistryLiquid ChromatographyChromatographic AnalysisPharmacologyChromatographyDrug Analysis