Stability Indicating RP-HPLC Simultaneous Estimation of Hyoscine Butylbromide and Paracetamol in Tablets

Author(s):  
Nalini Calambur Nagarajan ◽  
Amuthalakshmi Sivaperumanan ◽  
Priya
2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Ramakrishna Kommana ◽  
Praveen Basappa

The present paper describes the development of quick stability indicating RP-HPLC method for the simultaneous estimation of codeine phosphate and chlorpheniramine maleate in the presence of its degradation products, generated from forced degradation studies. The developed method separates codeine phosphate and chlorpheniramine maleate in impurities/degradation products. Codeine phosphate and chlorpheniramine maleate and their combination drug product were exposed to acid, base, oxidation, dry heat, and photolytic stress conditions, and the stressed samples were analysed by proposed method. The proposed HPLC method utilizes the Shimadzu HPLC system on a Phenomenex C18 column (, 5 μ) using a mixture of 1% o-phosphoric acid in water : acetonitrile : methanol (78 : 10 : 12) mobile phase with pH adjusted to 3.0 in an isocratic elution mode at a flow rate of 1 mL/min, at 23°C with a load of 20 μL. The detection was carried out at 254 nm. The retention time of codeine phosphate and chlorpheniramine maleate was found to be around 3.47 min and 9.45 min, respectively. The method has been validated with respect to linearity, robustness, precision, accuracy, limit of detection (LOD), and limit of quantification (LOQ). The developed validated stability indicating HPLC method was found to be simple, accurate, and reproducible for the determination of instability of these drugs in bulk and commercial products.


INDIAN DRUGS ◽  
2015 ◽  
Vol 52 (09) ◽  
pp. 40-47
Author(s):  
B. N Nalluri ◽  
◽  
B. Mrudula ◽  
K Chitralatha ◽  
S. A Sultana ◽  
...  

The present paper describes a sensitive and simple RP-HPLC-PDA method for the simultaneous estimation of Naproxen Sodium (NPX) and Diphenhydramine Hydrochloride (DPH) in the presence of their degradants. The drugs were subjected to stress conditions (forced degradation) to show the stability-indicating power of the method. The separation was achieved on Inertsil ODS C18 column (250×4.6mm, 5μ). The optimized liquid chromatographic conditions were found to be a mobile phase of 15mM ammonium acetate buffer: acetonitrile (60:40V/V) combination at a flow rate of 1.0 mL/min in isocratic mode with an injection volume of 10µL. The proposed method provided retention times of 4.6 and 10.8min, with linear responses over a range of 60-140μg/mL and 10-30μg/mL and regression coefficient (R2) of 0.999 and 0.996 respectively for NPX and DPH. No interference from other components of pharmaceutical dosage form and degradants was observed. The method was validated as per ICH guidelines and was successfully applied for the simultaneous estimation of both the drugs in bulk and tablet preparations.


Author(s):  
Krutika Patel ◽  
Sudheer Kumar Verriboina ◽  
S.G. Vasantharaju

A simple, accurate, specific and stability-indicating RP-HPLC method was developed for simultaneous determination of chlorzoxazone, diclofenac sodium and paracetamol, using C18 Vydac Monomeric 120A (250 × 4.6mm, 5μ) at 40ºC. The mobile phase contains a mixture of 20mM potassium dihydrogen phosphate buffer (pH 6.2 adjusted with potassium hydroxide) and acetonitrile (30:70 v/v). The flow rate was 1ml/min and detection was carried out at 275nm using PDA detector. The retention time of paracetamol, chlorzoxazone and diclofenac sodium were 3.28mins, 13.27mins and 15.61mins respectively. The analytical curve was linear over a concentration range of 0.65- 6.5μg/ml for paracetamol, 1-10μg/ml for chlorzoxazone and 0.1-1μg/ml for diclofenac sodium. The drugs in bulk and tablet were subjected to acid and alkali hydrolysis, oxidation, thermal and photolytic degradation. This method can be successfully employed for simultaneous quantitative analysis of Chlorzoxazone, Diclofenac sodium and Paracetamol in bulk drug and tablet formulation.


Author(s):  
Vaishali Mistry ◽  
Rohan Mishra

Objective: This study describes the stability-indicating reverse-phase high-performance liquid chromatography (RP-HPLC) method for simultaneous estimation of betahistine dihydrochloride and domperidone in pharmaceutical dosage forms.Methods: The proposed RP-HPLC method was developed using Shimadzu Prominence-i LC-2030 HPLC system equipped with UV detector and chromatographic operation was carried on Shim-pack C18 (250 mm×4.6 mm, 5 μ) column at a flow rate of 1 ml/min and the run time was 10 min. The mobile phase consisted of methanol and water in the ratio of 80:20% v/v and eluents were scanned using a UV detector at 244 nm.Results: The retention time of betahistine dihydrochloride and domperidone was found to be 2.3 and 3.6 min, respectively. A linearity response was observed in the concentration range of 9.6 μg/ml–22.4 μg/ml for betahistine dihydrochloride and 6–14 μg/ml for domperidone, respectively. Limit of detection and limit of quantification for betahistine dihydrochloride were 0.52 μg/ml and 1.58 μg/ml and for domperidone are 0.64 μg/ml and 1.94 μg/ml, respectively.Conclusion: The stability-indicating method was developed by subjecting drugs to stress conditions such as acid and base hydrolysis, oxidation, photo and thermal degradation, and degraded products formed were resolved successfully from samples.


INDIAN DRUGS ◽  
2016 ◽  
Vol 53 (06) ◽  
pp. 51-61
Author(s):  
J. G Modi ◽  
◽  
J. K. Patel

A novel, simple, rapid, and highly selective stability indicating RP-HPLC method was developed and validated for simultaneous estimation of azilsartan medoxomil (AZL) and amlodipine besylate HCl (AMLO) in tablet dosage form having strength of 20 mg and 2.5 mg, respectively. The effective chromatographic separation was achieved on a Phenomenex luna ODS C18 (15 cm X 4.6 mm internal diameter, 3.5 μm Particle size) with a mobile phase composed of phosphate buffer (pH-2.5) adjusted with ortho phosphoric acid : acetonitrile in the ratio of 60:40 v/v. The mobile phase was pumped using an isocratic HPLC system at a flow rate of 0.7 mL/min with injection volume 20μl and quantification of the analytes was done at detection wavelength 254 nm. The retention times were found to be 5.918 min and 14.901 min for AMLO and AZL, respectively. The proposed HPLC method was validated with respect to linearity, ranges, precision, accuracy, specificity, robustness, LOD, and LOQ as per ICH Q2 (R1) guideline. Calibration plots were linear over the concentration range of 75-125 µg/mL and 600-1000 µg/mL with correlation coefficients 0.9966 and 0.9948 for AMLO and AZL, respectively. Forced degradation studies were performed using hydrolysis, oxidation, photolytic, and thermal degradation conditions with good resolution between the degradants and analytes. Degradation products resulting from the stress studies did not interfere with the detection of AMLO and AZL, thus the proposed method is sensitive and stability-indicating. The validated HPLC method was successfully applied to the analysis of AMLO and AZL in tablet dosage form.


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.


Author(s):  
B. Anjaneyulu Reddy ◽  
Md. Irshad Alam ◽  
Nazia Khanam ◽  
P. R. Adhakrishnanand

Objective: To develop an innovative, rapid, simple, cost effective, stability indicating reverse phase-high performance liquid chromatography (RP-HPLC) method for simultaneous estimation of ledipasvir (LP) and sofosbuvir (SB) in combination pill dosage form. Methods: The method was developed using C8 column, 250 mm x 4.6 mm, 5mm using mobile section comprising of 0.1% (v/v) orthophosphoric acid buffer at pH 2.2 and acetonitrile in the ratio of 45:55 that was pumped through the column at a flow rate of 0.8 ml/min. Temperature was maintained at 30 °C, the effluents were monitored at 260 nm with the help of usage of PDA detector. Results: The retention time of LP and SB were found to be 2.246 min and 3.502 min. The approach was found to be linear with the variety of 9-36 µg/ml and 40-240 μg/ml for LP and SB respectively, the assay of estimated compounds were found to be 99.65% and 99.73% w/v for LP and SB respectively. Conclusion: The pressured samples changed into analyzed and this proposed a technique turned into determined to be particular and stability indicating as no interfering peaks of decay compound and excipients were observed. Hence, the approach was easy and economical that may be efficiently applied for simultaneous estimation of both LP and SB in bulk and combination tablet system.


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