scholarly journals A New Validated Stability Indicating RP-HPLC Method for Simultaneous Estimation of Pyridoxine Hydrochloride and Meclizine Hydrochloride in Pharmaceutical Solid Dosage Forms

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Md. Saddam Nawaz

A simple, specific, accurate, precise stability indicating reversed-phase high-performance liquid chromatographic (RP-HPLC) method was developed and validated for the simultaneous determination of pyridoxine hydrochloride (PYH) and meclizine hydrochloride (MEH). An isocratic separation of PYH and MEH were achieved on C 18, 250 × 4.6 mm ID, 5 μm particle size columns at column oven temperature 37°C with a flow rate of 0.5 mL min−1 and using a diode array detector to monitor the detection at 254 nm. The mobile phase consisted of buffer : acetonitrile : trifluoroacetic acid at a ratio of 30 : 70 : 0.1 (v/v). The retention times of PYH and MEH was found to be 5.25 and 10.14 min, respectively. Suitability, specificity, linearity, accuracy, precision, stability, and sensitivity of this method for the quantitative determination of the drugs were proved by validation in accordance with the requirements laid down by International Conference on Harmonization (ICH) Q2 (R1) guidelines. The proposed method is reliable and robust and can be used as quality control tool for the estimation of these drugs in combined pharmaceutical solid dosage forms.

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
J. Saroja ◽  
Anantha Lakshmi P.V. ◽  
Y. Rammohan ◽  
D. Divya Reddy

Abstract Background We describe a “stability-indicating liquid chromatography” technique for the estimation of dimethicone (DEC) and dicyclomine hydrochloride (DEH) in the established tablet formulations. Individual quantification of DEH and DEC was reported. But simultaneous quantification of DEH and DEC was lacking. DEH and DEC were analysed on an “XTerra C18 column (250 mm × 4.6 mm, 5 μm)” with the mobile phase solvent run isocratically with 0.1M K2HPO4-acetonitrile (55:45, v/v) on a flow speed of 1.0 mL/min. Results The chromatographic run period for the DEC and DEH assay was 6.0 min with retention times of 2.134 and 2.865 min, respectively. The method was validated for accuracy (99.453 to 100.417% and 99.703 to 100.303% recovery values for DEH and DEC, respectively), precision (RSV value 0.135% for DEC and 0.171% for DEH), linearity (5–15 μg/mL for DEH and 20–60 μg/mL for DEC), selectivity (no hinderance from excipients) and specificity (no hinderance from degradants) recovery. Conclusion The developed stability-indicating liquid chromatography process was well applied to established tablet formulations.


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.


INDIAN DRUGS ◽  
2016 ◽  
Vol 53 (08) ◽  
pp. 48-52
Author(s):  
K. P Parekh ◽  
◽  
A. P. Jadhav

A simple, accurate, precise, robust stability indicating RP-HPLC method was developed and validated for simultaneous estimation of berberine and curcumin in an ayurvedic formulation. The two markers were resolved using a C-18 column using as the mobile phase methanol: water (pH 3 adjusted using acetic acid) in the ratio 75:25 V/V at a flow rate of 1mL/min. Retention times of berberine and curcumin were 2.58 ± 0.2 min and 8.5 ± 0.2 min, respectively at 358 nm. Linear response was observed in the concentration range of 2 – 8 ppm for berberine and 5 – 40 ppm for curcumin, with correlation coefficient (r2) of 0.994 and 0.998 for berberine and curcumin, respectively. The developed method was applied for quantitation of markers in marketed and in-house formulations of Gruhadhoomadi Churna. This method can also be used to evaluate formulations containing berberine and curcumin as markers, thus conforming to the need of ensuring quality and safety of herbal medicines.


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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