Journal of AOAC International · 2009 · 10 citations · 0 references
Isocratic Hplc MethodEngineeringGas ChromatographyDrug PurityDegradation ProductsAnalytical ChemistryToxicologyLiquid ChromatographyClinical ChemistryLaboratory MedicineChromatographyBiochemistryChromatographic AnalysisPharmacologyVeterinary PreparationsEnvironmental EngineeringForensic ToxicologyVeterinary ScienceVeterinary InjectionEnvironmental ToxicologyMedicinePharmacokineticsDrug Analysis
Abstract An isocratic HPLC method was developed and validated for the quantitation of methocarbamol in the presence of its degradation products. Quantitation was achieved using a reversed-phase C18 column at ambient temperature with mobile phase consisting of methanolwatertetrahydrofuran (25 + 65 + 10, v/v). The flow rate was 0.9 mL/min. The detection was by UV light at 274 nm. The proposed method was validated for selectivity, precision, linearity, and accuracy. The assay method was found to be linear from 159.0 to 793.2 g/mL (3.2 to 15.9 g injected). All validation parameters were within the acceptable range. The developed method was successfully applied to estimate the amount of methocarbamol in a veterinary injection.