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Determination of diltiazem and its main metabolites in human plasma by automated solid-phase extraction and high-performance liquid chromatography: a new method overcoming instability of the compounds and interference problems

Interference ProblemsGas ChromatographyMedicineDrug PurityBioanalysisMass SpectrometryHuman PlasmaAnalytical ChemistryLiquid ChromatographyAutomated Solid-phase ExtractionChromatographic AnalysisPharmacologyPharmacokineticsChromatography