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Simultaneous determination of bromhexine hydrochloride and methyl and propyl p-hydroxybenzoate and determination of dextromethorphan hydrobromide in cough-cold syrup by high-performance liquid chromatography

Pharmaceutical ScienceGas ChromatographyCough-cold SyrupPropyl P-hydroxybenzoateMedicineAnalytical ChemistryLiquid ChromatographyChromatographic AnalysisPharmacologyPharmacokineticsChromatographyHigh-performance Liquid ChromatographyDrug Analysis