Method Development and Validation for Estimation of Istradefylline in Tablet Dosage form by RP-HPLC

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.

Author(s):  
Abhishek Agrawal ◽  
Prem Kumar Bichala ◽  
Swapna Singh

RP-HPLC method was developed for the determination for the validation of Nitazoxanide and Ofloxacin in pharmaceutical dosage form. Chromatographic separation was performed on Develosil ODS HG-5 RP C18, 15x4.6mm, 5µm column, with mobile phase comprising of mixture of ACN: Methanol: Citric acid in the ratio of 50:45:5 v/v, at the flow rate 1.0ml/min and the detection was carried out at 296nm. The comprehensive forced stress testing has been carried out as per USP guidelines. The drug Nitazoxanide is subjected to synthetic Benzamide, and the drug Ofloxacin is subject to synthetic Fluoroquinolone. RP- HPLC method was developed to separate analyte from all other degradation peaks. The method was successfully validated as per ICH guidelines for the purpose of conducting studies of the analyte in quality control laboratory. The drug was subjected to different degradation conditions; it was found to be stable in all degradation conditions. The purposed HPLC method was found to be precise, specific, accurate, rapid and economical for the determination of Nitazoxanide and Ofloxacin in pharmaceutical dosage form. The sample recoveries in all formulations were in good agreement with their respective label claims and this method can be used for routine analysis. The linearity range was found to be 0-50 (µg/ml) for Nitazoxanide and 0-50 (µg/ml) for Ofloxacin. Calibration curve was plotted and correlation co-efficient for the drugs found to be 0.999 and 0.997. Hence the results obtained were within the limits.


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.


2020 ◽  
Vol 10 (4) ◽  
pp. 97-101
Author(s):  
Mithun Rudrapal ◽  
Nazim Hussain

A simple, precise and accurate RP-HPLC method was developed and validated for the estimation of gemifloxacin in the tablet dosage form. The separation was achieved on a reversed-phase C-18 column (250 x 4.6 mm i.d., 5 µm) using a mobile phase consisting of acetonitrile/acetate buffer of pH 4.5 (70:30 v/v) at a flow rate of 1.0 ml/min and a detection wavelength of 244 nm. The separation was carried out on an isocratic mode at room temperature. The method was validated as per ICH guidelines for linearity, accuracy, precision, robustness, LOD, LOQ and specificity. The developed method showed good linearity over the concentration range of 50-150 µg/ml (r2=0.995). The average percentage recovery was 99.77%. The LOD and LOQ were 12.678 µg/ml and 14.261 µg/ml, respectively. Based upon validation studies, the developed method can be successfully applied for the routine analysis of gemifloxacin in bulk drugs as well as pharmaceutical dosage forms. Keywords: Gemifloxacin, Tablet dosage form, RP-HPLC, Validation, ICH guidelines


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.


2014 ◽  
Vol 1 (3) ◽  
pp. 50
Author(s):  
Ananda Thangadurai Subramaniam ◽  
Jambulingam Munusamy ◽  
Saravanakumar Sengodan ◽  
Kamalakannan Danapal ◽  
Haritha D Siva Ganga Lakshmi ◽  
...  

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