scholarly journals Separation and Determination of Process Related Impurities in Palbociclib: A Rp-hplc Study

Author(s):  
D. Srikanth ◽  
S. Ganapaty ◽  
P. Manik Reddy ◽  
G. Sowjanya ◽  
K. Sunitha

Aims: A new gradient RP-HPLC method was developed for the separation and determination of process related impurities in Palbociclib. Methodology: The chromatographic separation was achieved on a Inert sustain swift (C18) column using a mobile phase comprising of perchloric acid and acetonitrile in a gradient mode at a flow rate of 1 mL/min. over a runtime of 50 minutes. All the eluants were monitored at 230 nm. The optimized method was validated as per ICH guidelines for various parameters. Results: The linearity of the method was proposed in the range of LOQ to 250 % for the drug and its impurities by subjecting the data obtained to statistical analysis using correlation coefficient model (r > 0.99). The method also gave acceptable recovery of all the four impurities at each level and was found to be accurate. The % RSD obtained in the method precision and intermediate precision were less than 2% depicting the precision of the method. The LOD and LOQ values were calculated based on the signal to noise ratio and are indicating the sensitivity of the method. The specificity of the method was checked in the presence of process related impurities and also degradants generated by exposing to a variety of forced degradation conditions. Conclusion: The proposed RP-HPLC method for the determination of process related impurities of Palbociclib could be routinely used in the quality control testing.

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Shilpi Pathak ◽  
Pradeep Mishra

Abstract Background A stability-indicating RP-HPLC method was developed and validated for the estimation of empagliflozin drug and its tablet dosage form using a DAD detector. The mobile phase consisted of methanol/acetonitrile/0.1%OPA (75:20:5). The peak was observed at 2.54 min using 222.0 nm absorption maxima. Results Calibration curve plot was found within the range of 10–50 µg/mL. The coefficient of determination (R2) was found to be 0.9990. Forced degradation studies were performed for the empagliflozin in various conditions, and the results were calculated as %RSD values and were found to be within the limits. Conclusion The method was validated as per ICH guidelines with respect to all validation parameters.


Author(s):  
MD. Muzaffar -ur- Rehman1 ◽  
G. Nagamallika

A simple, rapid, precise, and accurate RP-HPLC method for the estimation of Ivabradine Hydrochloride an anti-anginal agent, both as a bulk drug and in pharmaceutical formulation was developed. The chromatographic separation was achieved on a Thermosil C18 150 × 4.5 mm, 5μm column by using a mobile phase containing a mixture of methanol and phosphate buffer pH 6.5 in the ratio of 65:35 % v/v at a flow rate of 1ml/min and at an ambient temperature. The detection was monitored at a wavelength of 265nm. A clear chromatographic peak was identified with the retention time of 4.36 min and tailing factor of 1.23. The developed method was validated according to ICH guidelines with respect to specificity, linearity, accuracy, precision and robustness. The method shows a good linear relationship with correlation co-efficient of more than 0.992 in the concentration range of 30μg-150μg. The method showed mean % Recovery of 100.4% and %RSD for repeatability and intermediate precision was less than 2%. The proposed method can be used successfully for the quantitative determination of Ivabradine HCL in pharmaceutical dosage forms.


2021 ◽  
Vol 12 (3) ◽  
pp. 1961-1966
Author(s):  
Gopinath K ◽  
Padmavathi K. V. ◽  
Murali Krishna N ◽  
Subbarao M

For simultaneous analysis of Dolutegravir and Rilpivirine utilizing RP-HPLC, an accurate, rapid, economical, quick and reliable assay technique was developed and tested. Successful chromatographic detachment using acetonitrile and 0.1 percent tri ethyl amine in the water of pH-2.5 adjusted with 0.1% orthophosphoric acid in 40:60 v/v as a movable phase with a flow of 1 ml/min and UV observation at 230 nm. Chromatography at ambient temperature was performed isocratically, and the run time was 10 min. By injecting the norm six times, device suitability parameters were studied and the findings were far below the acceptance criteria. The linearity analysis was performed at levels ranging from 10% to 150% and the R2 value was found to be 0.999. Precision has been found to be 0.8 for repeatability and 1.2 for intermediate precision. Assay of the commercialized formulation was performed by using the above method, and we get 100.01 percent was present. For routine analysis in drug testing, this chromatographic approach can be effectively implemented. By using the above technique, an assay of the marketed formulation was performed and found to be within the limit. Degradation studies were carried out on Dolutegravir and Rilpivirine, with a purity threshold greater than purity angle in all conditions and within the acceptable range. The above-mentioned technique was validated according to ICH guidelines. 


2021 ◽  
Author(s):  
Abderrazaq Hamdache ◽  
Lamia Grib ◽  
Celia Grib ◽  
Lydia Adour ◽  
Hakim Zatout ◽  
...  

2010 ◽  
Vol 7 (1) ◽  
pp. 246-252 ◽  
Author(s):  
S. K. Patro ◽  
S. K. Kanungo ◽  
V. J. Patro ◽  
N. S. K. Choudhury

A simple, rapid and accurate and stability indicating RP-HPLC method was developed for the determination of valsartan in pure and tablet forms. The method showed a linear response for concentrations in the range of 50-175 µg/mL using 0.01 M NH4H2PO4(pH 3.5) buffer: methanol [50:50] as the mobile phase with detection at 210 nm and a flow rate of 1 mL/min and retention time 11.041 min. The method was statistically validated for accuracy, precision, linearity, ruggedness, robustness, forced degradation, solution stability and selectivity. Quantitative and recovery studies of the dosage form were also carried out and analyzed; the % RSD from recovery studies was found to be less than 1. Due to simplicity, rapidity and accuracy of the method, we believe that the method will be useful for routine quality control analysis.


INDIAN DRUGS ◽  
2015 ◽  
Vol 52 (02) ◽  
pp. 20-33
Author(s):  
N. S Kumar ◽  
◽  
R Kumaraswamy ◽  
S. Shantikumar ◽  
D. Paul

The present study describes the separation and simultaneous estimation of eight anti-retroviral drugs, namely, Telaprevir (TPV), Emtricitabine (ECB), Fosamprenavir (FANV), Tenofavir (TNF), Ritonavir (RNV), Raltegravir (RGV) and Oseltamivir (OSMV) and Zidovudine (ZDV) as an active pharmaceutical ingredient, by RP-HPLC method by applying the principles of Quality by Design (QbD). An application of DoE (Design of Experiments) full factorial design was used for initial screening and optimization. The final optimized method consists of separation being carried out on a Fortis C18 column (150 mm × 4.6 mm, 5μ particle size) using acetonitrile and 10 mm ammonium formate buffer (pH 3 adjusted with formic acid) using a gradient program. The quantitative evaluation was performed with a diode array detector at 251 nm and 230 nm with a flow rate of 1 mL min–1. Suitability of this method for the quantitative determination of the drugs was proved by validation in accordance with the International Conference on Harmonization (ICH) guidelines. The method is selective, precise, robust and accurate and can be used for routine analysis of pharmaceutical formulations in quality control and counterfeit screening.


2010 ◽  
Vol 93 (2) ◽  
pp. 523-530 ◽  
Author(s):  
Sérgio Luiz Dalmora ◽  
Maximiliano da Silva Sangoi ◽  
Daniele Rubert Nogueira ◽  
Lucélia Magalhães da Silva

Abstract An RP-HPLC method was validated for the determination of entecavir in tablet dosage form. The HPLC method was carried out on a Gemini C18 column (150 4.6 mm id) maintained at 30C. The mobile phase consisted of acetonitrilewater (95 + 5, v/v)/potassium phosphate buffer (0.01 M, pH 4; 9 + 91, v/v) pumped at a flow rate of 1.0 mL/min. Photodiode array detection was at 253 nm. The chromatographic separation was obtained with a retention time of 4.18 min, and the method was linear in the range of 0.5200 g/mL (r2 0.9998). The specificity and stability-indicating capability of the method was proven through forced degradation studies, which also showed that there was no interference of the excipients and an increase of the cytotoxicity only by the basic condition. The accuracy was 101.19, with bias lower than 1.81. The LOD and LOQ were 0.39 and 0.5 g/mL, respectively. Method validation demonstrated acceptable results for precision and robustness. The proposed method was applied for the analysis of tablet formulations, to improve QC and assure therapeutic efficacy.


2016 ◽  
Vol 9 (1) ◽  
pp. 54
Author(s):  
Megha Sharma ◽  
Neeraj Mahindroo

Objective: The objective of the present study was to develop and validate a novel stability indicating reverse phase-high performance liquid chromatography (RP-HPLC) method for determination of β-acetyldigoxin, an active pharmaceutical ingredient (API).Methods: The chromatographic separation was carried out on Agilent Technologies 1200 series HPLC system equipped with photo diode array detector and C-18 (4.6x250 mm, 5 µ) column. The mobile phase consisted of water: acetonitrile (65:35 v/v), delivered at a flow rate of 1.5 ml/min and eluents were monitored at 225 nm.Results: The retention time of β-acetyldigoxin was 9.2 min. The method was found to be linear (R2= 0.9995) in the range of 31.25-500 µg/ml. The accuracy studies showed the mean percent recovery of 101.02%. LOD and LOQ were observed to be 0.289 µg/ml and 0.965 µg/ml, respectively. The method was found to be robust and system suitability testing was also performed. Forced degradation analysis was carried out under acidic, alkaline, oxidative and photolytic stress conditions. Significant degradation was observed under tested conditions, except for oxidative condition. The method was able to separate all the degradation products within runtime of 20 min and was able to determine β-acetyldigoxin unequivocally in presence of degradation products.Conclusion: The novel, economic, rapid and simple method for analysis of β-acetyldigoxin is reported. The developed method is suitable for routine quality control and its determination as API, and in pharmaceutical formulations and stability study samples.


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