%0 Journal Article %T Stability indicating assay method for simultaneous estimation of nebivolol and valsartan in pharmaceutical dosage form by RP-HPLC %J Asian Journal of Green Chemistry %I Sami Publishing Company %Z 2588-5839 %A Vyas, Amit %A Nathwani, Grishma %A Patel, Ajay %A Patel, Ashok %A Patel, Nilesh %A Makvana, Nirav %D 2018 %\ 07/01/2018 %V 2 %N 3 %P 227-245 %! Stability indicating assay method for simultaneous estimation of nebivolol and valsartan in pharmaceutical dosage form by RP-HPLC %K Nebivolol %K valsartan %K RP-HPLC %K Stability indicating %K Validation %R 10.22034/ajgc.2018.61081 %X A simple, rapid, precise, and accurate isocratic reversed-phase stability indicating HPLC method was developed and validated for simultaneous determination of the nebivolol and valsartan in the tablet dosage form. The effective chromatographic separation was achieved by a YMC pack pro octadecyl silane (150×4.6 mm, 3 µm) column using a mobile phase composed of methanol: acetonitrile: 0.05 M potassium dihydrogen phosphate buffer (Ph=3.0 with 10% ortho phosphoric acid after addition of 0.2% triethylamine) (30:30:40, v/v/v) at a flow rate of 1 mL/min and UV detection at 282 nm. Drugs were subjected to the acid, base, oxidation, heat, and photolysis to apply the stress. Linearity ranges were 5–30 µg/mL (r2= 0.9989) for nebivolol and 80-480 µg/mL (r2=0.9991) for valsartan. Limit of detection was 0.38 µg/mL and 1.08 µg/mL for nebivolol and valsartan, respectively. The limit of quantification for the nebivolol and valsartan was 1.15 µg/mL and 3.27 µg/mL, respectively. %U https://www.ajgreenchem.com/article_61081_302a69ddf97204e4f9a63090929713c6.pdf