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Simultaneous Quantitative Resolution of Atorvastatin Calcium and Fenofibrate in Pharmaceutical Preparation by Using Derivative Ratio Spectrophotometry and Chemometric Calibrations

Atorvastatin CalciumPharmaceutical ScienceBiochemistryMedicineDrug PuritySimultaneous Quantitative ResolutionAnalytical ChemistryClinical ChemistryChromatographyPharmacologyDerivative Ratio SpectrophotometryPharmacokineticsDrug DiscoveryPharmaceutical ResearchDrug Analysis