Stability‐indicating RP‐HPLC method development and validation for determination of nine impurities in apixaban tablet dosage forms. Robustness study by quality by design approach

2019 ◽  
Vol 34 (1) ◽  
Author(s):  
Velusamy B. Subramanian ◽  
Naresh Kumar Katari ◽  
Thirupathi Dongala ◽  
Sreekantha B. Jonnalagadda
2013 ◽  
Vol 49 (2) ◽  
pp. 359-366 ◽  
Author(s):  
Mustafa Çelebier ◽  
Tuba Reçber ◽  
Engin Koçak ◽  
Sacide Altinöz

Rivaroxaban, an anti-clotting medication, acts at a crucial point in the blood-clotting process and stops the formation of blood clots. In this study, RP-HPLC method was developed for the determination of rivaroxaban in tablets (Xarelto® (10 mg)). Phenomenex Luna 5 µm C18 100 Å LC Column (250 x 4.6 mm) was used at 40 ºC. Isocratic elution was performed with ACN:Water (55:45 v/v) mixture. The flow rate was 1.2 mL min-1 and UV detection was at 249 nm. Internal standard (Caffeine) and rivaroxaban were eluted within 2.21 and 3.37 minutes, respectively. The developed method was validated according to the ICH guidelines and found to be linear within the range 0.005 - 40.0 µg mL-1. The method was accurate, precise, robust and rapid. Thus, it was applied successfully for the quality control assay of rivaroxaban in tablet dosage form.


Author(s):  
Krishna Kishore Adireddy ◽  
Srinivasa Rao Baratam ◽  
Nagarjuna Hari Pratap S

A simple, rapid, accurate and precise RP-HPLC method was developed and validated for the determination of Istradefylline in table dosage form. Chromatographic analysis of the drug was achieved on Shimadzu HPLC comprising of LC- 20 AD binary gradient pump, a variable wavelength programmable SPD-20A detector and SCL system controller. C18G column (250 mm x 4.6 mm, 5 μ) as stationary phase with mobile phase consisting of 0.1 % orthophosphoric acid and acetonitrile in the ratio of 30: 70 v/v. The method showed a good linear response in the concentration range of 10-90 μg/ml with correlation coefficient of 0.9993. The flow rate was maintained at 1.0 ml/min and detection was carried out at 246 nm. The retention time was 3.125 min. The method was statistically validated for accuracy, precision, linearity, ruggedness, robustness, solution stability, selectivity and sensitivity. The results obtained in the study were within the limits of ICH guidelines and hence this method can be used for the determination of istradefylline in tablet formulation.


INDIAN DRUGS ◽  
2019 ◽  
Vol 56 (05) ◽  
pp. 68-71
Author(s):  
A Lakshmana Rao ◽  
◽  
T. Prasanthi ◽  
E. L Anusha

A simple, accurate and precise RP-HPLC method was developed for the simultaneous estimation of the linagliptin and empagliflozin in tablet dosage form. Chromatogram was run through Kromasil 250 x 4.6 mM, 5mM column, mobile phase containing 0.1% o-phosphoric acid buffer and acetonitrile in the ratio of 60:40%v/v was pumped through column at a flow rate of 1 mL/min. The optimized wavelength was 230 nm. Retention times of linagliptin and empagliflozin were found to be 2.759 min and 2.139 min. %RSD of the Linagliptin and Empagliflozin were found to be 0.5 and 0.6 respectively. Percentage assay was obtained as 99.91% and 100.15% for linagliptin and empagliflozin, respectively. LOD, LOQ values obtained for linagliptin and empagliflozin were 0.23 μg/ml and 0.44 μg/mL and 0.70 μg/mL and 1.34 μg/mL, respectively. Thus, the current study showed that the developed RP-HPLC method is sensitive and selective for the estimation of linagliptin and empagliflozin in combined dosage form.


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