Development and validation of eco-friendly micellar-HPLC and HPTLC-densitometry methods for the simultaneous determination of paritaprevir, ritonavir and ombitasvir in pharmaceutical dosage forms

Faculty Pharmacy Year: 2019
Type of Publication: ZU Hosted Pages:
Authors:
Journal: JPC-Journal of Planar Chromatography-Modern TLC Elsevier Volume:
Keywords : Development , validation , eco-friendly micellar-HPLC , HPTLC-densitometry methods    
Abstract:
Ombitasvir, ritonavir and paritaprevir are three recently discovered directly acting antiviral drugs (DAADs) used in combined single dose tablet dosage form for treatment of hepatitis-C viral infections (HCV). The methods of analysis followed by quality control and research laboratories are required to be economic and fast; however, these methods can also produce huge amounts of chemical waste. In this study two fast, economic and green HPLC and HPTLC methods were validated for the simultaneous determination of the three drugs. For HPLC, isocratic elution used a mixture of micellar aqueous mobile phase consisting of (0.15 M sodium lauryl sulfate and 0.01 M sodium dihydrogen phosphate, pH 6.2) and ethanol (56:44). Elution was done on RP-C18 Kinetix® column (5 μm, 150 mm × 4.6 mm ID) at flow 1 mL min-1 and 254 nm UV-detector. HPTLC separations were performed on Merck® (20 cm × 10 cm) aluminum HPTLC plates coated with silica gel 60F254 using a mobile phase, Methylene chloride: methanol: ethyl acetate: ammonia (25%), (5:1:3:1, v/v/v/v) respectively. The calibration curves were linear across ranges of 3–100 μg mL-1 and 0.1–2 μg/spot for both HPLC and HPTLC methods, respectively. The two methods were applied successfully for the determination of the three drugs under study in their combined tablets dosage forms.
   
     
 
       

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