scholarly journals Stability-Indicating RP-HPLC Method for Assay of Silver Lactate

2011 ◽  
Vol 8 (2) ◽  
pp. 483-490
Author(s):  
V. Srinivasan ◽  
H. Sivaramakrishnan ◽  
B. Karthikeyan
Keyword(s):  
Thermal Stress ◽  
Degradation Products ◽  
Potassium Dihydrogen Phosphate ◽  
Hplc Method ◽  
Stress Conditions ◽  
Base Hydrolysis ◽  
Assay Method ◽  
Dihydrogen Phosphate ◽  
Stability Indicating ◽  
Rp Hplc

A simple, economic and time-efficient stability-indicating, reverse-phase high-performance liquid chromatographic (RP-HPLC) method has been developed for analysis of silver lactate in the presence of degradation products generated by decomposition. When silver lactate was subjected to acid hydrolysis, base hydrolysis, oxidative, photolytic, humidity and thermal stress, degradation was observed during base hydrolysis, oxidation, humidity and thermal stress. The drug was found to be stable to other stress conditions. Successful chromatographic condition of the drug from the degradation products formed under stress conditions was achieved on a phenomenex Gemini column with potassium dihydrogen phosphate buffer, pH adjusted to 2.2 with orthophosphoric acid, as mobile phase. The method was validated for linearity, precision, specificity and robustness and can be used for quality-control during manufacture and assessment of the stability of samples of silver lactate. To the best of our knowledge, a validated stability-indicating LC assay method for silver lactate based on lactic acid is reported for the first time.

Stability Indicating Assay Method Development and Validation of Simultaneous Estimation of Chlorzoxazone, Diclofenac Sodium and Paracetamol in Bulk Drug and Tablet by RP-HPLC

2021 ◽  
pp. 5024-5028
Author(s):  
Krutika Patel ◽  
Sudheer Kumar Verriboina ◽  
S.G. Vasantharaju
Keyword(s):  
Method Development ◽  
Diclofenac Sodium ◽  
Potassium Dihydrogen Phosphate ◽  
Hplc Method ◽  
Assay Method ◽  
Simultaneous Estimation ◽  
Dihydrogen Phosphate ◽  
Stability Indicating ◽  
Rp Hplc ◽  
Bulk Drug

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.

Study of Doxofylline and its Degradation Products in Bulk Drug by a Newly Developed Stability-Indicating HPLC Method

2013 ◽  
Vol 96 (4) ◽  
pp. 765-770 ◽  
Author(s):  
Priti S Patil ◽  
Purnima D Hamrapurkar ◽  
Mitesh D Phale ◽  
Masti I Desai ◽  
Sandeep B Pawar
Keyword(s):  
Uv Light ◽  
Degradation Products ◽  
Hplc Method ◽  
Stress Conditions ◽  
Base Hydrolysis ◽  
Assay Method ◽  
Good Resolution ◽  
Buffer Solution ◽  
Solution Ph ◽  
Stability Indicating

Abstract The purpose of this work was to study the stability behavior of doxofylline under different stress conditions and to develop a sensitive stability-indicating HPLC assay method. The stress conditions applied included heat, moisture, acid-base hydrolysis, oxidation, and UV light. The drug was particularly labile under oxidative and thermal stress conditions, with 58.40 and 53.90% degradation, respectively. Good resolution of drug from degradation products formed under stress conditions was achieved on a C18 column using 10 mM KH2PO4 buffer solution (pH 6) methanol (40 + 60, v/v) as the mobile phase (pH 7.2). The flow rate was 1 mL/min, and the detection wavelength was 273 nm. The method was validated for linearity, range, precision, accuracy, LOD, and LOQ. The RSD was found to be <2%. Since the method effectively separates the drug from its degradation products, it can be used as a stability-indicating method.

scholarly journals A Rapid Stability-Indicating RP-HPLC Method for the Determination of Betaxolol Hydrochloride in Pharmaceutical Tablets

2013 ◽  
Vol 8 ◽  
pp. ACI.S11256 ◽  
Author(s):  
Sylvain Auvity ◽  
Fouad Chiadmi ◽  
Salvatore Cisternino ◽  
Jean-Eudes Fontan ◽  
Joël Schlatter
Keyword(s):  
High Performance ◽  
Degradation Products ◽  
Potassium Dihydrogen Phosphate ◽  
Reversed Phase ◽  
Hplc Method ◽  
Forced Degradation ◽  
Dihydrogen Phosphate ◽  
Stability Indicating ◽  
Rp Hplc

A stability-indicating reversed-phase high performance liquid chromatography (RP-HPLC) method was developed for the determination of betaxolol hydrochloride, a drug used in the treatment of hypertension and glaucoma. The desired chromatographic separation was achieved on a Nucleosil C18, 4 μm (150 × 4.6 mm) column, using isocratic elution at a 220 nm detector wavelength. The optimized mobile phase consisted of a 0.02 M potassium dihydrogen phosphate: methanol (40:60, v/v, pH 3.0 adjusted with o-phosphoric acid) as solvent. The flow rate was 1.6 mL/min and the retention time of betaxolol hydrochloride was 1.72 min. The linearity for betaxolol hydrochloride was in the range of 25 to 200 μg/mL. Recovery for betaxolol hydrochloride was calculated as 100.01%-101.35%. The stability-indicating capability was established by forced degradation experiments and the separation of unknown degradation products. The developed RP-HPLC method was validated according to the International Conference on Harmonization (ICH) guidelines. This validated method was applied for the estimation of betaxolol hydrochloride in commercially available tablets.

scholarly journals STABILITY INDICATING RP-HPLC ASSAY METHOD FOR ESTIMATION OF DIMETHYL FUMARATE IN BULK AND CAPSULES

2017 ◽  
Vol 9 (5) ◽  
pp. 121 ◽  
Author(s):  
Hemant K. Jain ◽  
Archana A. Gunjal
Keyword(s):  
Dimethyl Fumarate ◽  
Hplc Method ◽  
Assay Method ◽  
Forced Degradation ◽  
Dihydrogen Phosphate ◽  
Column Temperature ◽  
Stability Indicating ◽  
Rp Hplc ◽  
Forced Degradation Studies ◽  
Degradation Studies

Objective: To develop an accurate, simple, precise and specific stability indicating RP-HPLC method for estimation of dimethyl fumarate in bulk and capsules.Methods: An Inertsil ODS (150x4.6 mm, 5µ) column and a mobile phase containing acetonitrile: potassium dihydrogen phosphate buffer pH 6.8 (50:50% v/v) was used for this study. The flow rate was maintained at 1.0 ml/min; column temperature was fixed at 35 °C and UV detection was carried out at 210 nm. The forced degradation studies were performed and method was validated with as per ICH guidelines.Results: The retention time of dimethyl fumarate was found to be 3.3±0.02 min. The value of correlation coefficient between peak area and concentration was found to be 0.9993. The mean percent recovery of dimethyl fumarate in capsules was found in the range of 99.65 to 101.64%. The results of forced degradation studies indicated that the drug was found to be stable in basic, oxidative and thermal conditions while degraded in acidic conditions.Conclusion: It can be conducted from results that the developed HPLC method is simple, accurate, precise and specific. Results of stress testing study revealed that the method is stability indicating. Thus, this method can be used for routine analysis of dimethyl fumarate capsules and check their stability.  

scholarly journals Development and Validation of a Stability-Indicating RP-HPLC Method for Determination of Atomoxetine Hydrochloride in Tablets

2010 ◽  
Vol 93 (4) ◽  
pp. 1207-1214 ◽  
Author(s):  
Sejal K Patel ◽  
Natvarlal J Patel
Keyword(s):  
Degradation Products ◽  
Hplc Method ◽  
Stress Conditions ◽  
Acid Base ◽  
Photodiode Array Detection ◽  
Stability Indicating ◽  
Stability Indicating Method ◽  
Rp Hplc ◽  
Wet Heat

Abstract This paper describes the development of a stability-indicating RP-HPLC method for the determination of atomoxetine hydrochloride (ATX) in the presence of its degradation products generated from forced decomposition studies. The drug substance was subjected to stress conditions of acid, base, oxidation, wet heat, dry heat, and photodegradation. In stability tests, the drug was susceptible to acid, base, oxidation, and dry and wet heat degradation. It was found to be stable under the photolytic conditions tested. The drug was successfully separated from the degradation products formed under stress conditions on a Phenomenex C18 column (250 4.6 mm id, 5 m particle size) by using acetonitrilemethanol0.032 M ammonium acetate (55 + 05 + 40, v/v/v) as the mobile phase at 1.0 mL/min and 40C. Photodiode array detection at 275 nm was used for quantitation after RP-HPLC over the concentration range of 0.55 g/mL with a mean recovery of 100.8 0.4 for ATX. Statistical analysis demonstrated that the method is repeatable, specific, and accurate for the estimation of ATX. Because the method effectively separates the drug from its degradation products, it can be used as a stability-indicating method.

scholarly journals STABILITY INDICATING RP-HPLC METHOD DEVELOPMENT AND VALIDATION FOR THE SIMULTANEOUS DETERMINATION OF VILDAGLIPTIN AND METFORMIN IN PHARMACEUTICAL DOSAGE FORM

2017 ◽  
Vol 9 (3) ◽  
pp. 150
Author(s):  
Ramesh Jayaprakash ◽  
Senthil Kumar Natesan
Keyword(s):  
High Performance ◽  
Method Development ◽  
Limit Of Detection ◽  
Potassium Dihydrogen Phosphate ◽  
Hplc Method ◽  
Dihydrogen Phosphate ◽  
Pharmaceutical Dosage Form ◽  
Stability Indicating ◽  
Rp Hplc

Objective: The present study was aimed to develop a rapid, accurate, linear, sensitive and validate stability-indicating high performance liquid chromatographic [RP-HPLC] method for determination of vildagliptin and metformin in pharmaceutical dosage form.Methods: The chromatographic separation was performed on kromasil-C18 column [4.5 x 250 mm; 5 µm] using a mobile phase consisting of 0.05 mmol potassium dihydrogen phosphate buffer: acetonitrile [80:20 v/v], [pH adjusted to 3.5 using orthophosphoric acid]. The flow rate is 0.9 ml/min and the detection was carried out at 263 nm.Results: The chromatographic condition, the peak retention time of metformin and vildagliptin were found to be 2.215 min and 2.600 min respectively. Stress testing was performed in accordance with an international conference on harmonization [ICH] Q1A R2 guidelines. The method was validated as per ICH Q2 R1 guidelines. The calibration curve was found to be linear in the concentration range of 5-17.5 µg/ml and 50-175 µg/ml for vildagliptin and metformin. The limit of detection and quantification was found to be 0.0182 µg/ml and 0.0553 µg/ml for vildagliptin and 0.4451 µg/ml and 1.3490 µg/ml for metformin respectively.Conclusion: A new sensitive, simple and stability indicating reverse-phase high-performance liquid chromatography [RP-HPLC] method has been developed and validated for the determination of vildagliptin and metformin. The proposed method can be used for routine determination of vildagliptin and metformin.

scholarly journals Stability-Indicating RP-HPLC Method Development and Validation for Duloxetine Hydrochloride in Tablets

2010 ◽  
Vol 93 (1) ◽  
pp. 123-132 ◽  
Author(s):  
Sejal K Patel ◽  
Natavarlal J Patel ◽  
Arun M Prajapati ◽  
Dipti B Patel ◽  
Satish A Patel
Keyword(s):  
Method Development ◽  
Degradation Products ◽  
Hplc Method ◽  
Stress Conditions ◽  
Photodiode Array Detection ◽  
Heat Condition ◽  
Stability Indicating ◽  
Dry Heat ◽  
Duloxetine Hydrochloride ◽  
Rp Hplc

Abstract This paper describes the development of a stability-indicating RP-HPLC method for duloxetine hydrochloride (DLX) in the presence of its degradation products generated from forced decomposition studies. The drug substance was found to be susceptible to stress conditions of acid, base, oxidation, wet heat, dry heat, and photodegradation. The drug was found to be stable to the dry heat condition attempted. Successful separation of the drug from the degradation products formed under stress conditions was achieved on a Phenomenex C18 column (250 4.6 mm id, 5 µm particle size) using acetonitrilemethanol0.032 M ammonium acetate buffer (55 + 05 + 40, v/v/v) as the mobile phase at a flow rate of 1.0 mL/min at 40°C temperature. Quantification was achieved with photodiode array detection at 290 nm over the concentration range 0.25 µg/mL with mean recovery of 101.048 ± 0.53 for DLX by the RP-HPLC method. Statistical analysis proved the method is repeatable, specific, and accurate for estimation of DLX. Because the method could effectively separate the drug from its degradation products, it can be used as a stability-indicating method.

scholarly journals Development and Validation of a Stability-Indicating Assay Method for Simultaneous Determination of Perindopril and Indapamide in Combined Dosage Form by Reversed-Phase High-Performance Liquid Chromatography

2010 ◽  
Vol 93 (1) ◽  
pp. 108-115 ◽  
Author(s):  
Hitesh Jogia ◽  
Umesh Khandelwal ◽  
Tripti Gandhi ◽  
Sukhdev Singh ◽  
Darshana Modi
Keyword(s):  
Simultaneous Determination ◽  
Stress Testing ◽  
Degradation Products ◽  
Stress Conditions ◽  
Base Hydrolysis ◽  
Assay Method ◽  
Forced Degradation ◽  
Solution Stability ◽  
Stability Indicating

Abstract An approach of forced degradation study was successfully applied for the development of a stability-indicating assay method for simultaneous determination of perindopril and indapamide in a formulation in the presence of its degradation products. The method showed adequate separation of perindopril and indapamide from their associated main impurities and degradation products. Separation was achieved on an XTerra<sup/> RP18, 5 µm, 150 4.6 mm id column at 55°C by using the mobile phase NaH2PO4 buffer (pH 2.0; 0.005 M)acetonitrile (75 + 25, v/v ) at a flow rate of 1 mL/min and UV detection at 215 nm. Comprehensive stress testing of perindopril and indapamide was carried out according to the International Conference on Harmonization (ICH) guideline Q1A (R2). The specificity of the method was determined by assessing interference from the placebo and by stress testing of the drug (forced degradation). The drug was subjected to acid hydrolysis, base hydrolysis, oxidation, dry heat, and photolysis to apply stress conditions. There were no other coeluting, interfering peaks from excipients, impurities, or degradation products due to variable stress conditions, and the method was specific for determination of perindopril and indapamide in the presence of degradation products. The method was validated in terms of linearity, precision, accuracy, specificity, robustness, and solution stability. The linearity of the proposed method was investigated in the range of 2456 µg/mL (r2 = 0.9993) for perindopril and 7.517.5 µg/mL (r2 = 0.9992) for indapamide. Degradation products produced as a result of stress studies did not interfere with the detection of perindopril and indapamide, and the assay can thus be considered stability indicating.

scholarly journals Development and Validation of Stability Indicating RP-HPLC Assay Method for Mefenamic Acid

2019 ◽  
Vol 31 (3) ◽  
pp. 656-660
Author(s):  
Adison Fernandes ◽  
P.N. Sanjay Pai
Keyword(s):  
Thermal Stress ◽  
Mefenamic Acid ◽  
Degradation Products ◽  
Research Work ◽  
Stress Conditions ◽  
Assay Method ◽  
Array Detector ◽  
Dihydrogen Phosphate ◽  
Photodiode Array Detector ◽  
The Stability

The present research work was carried out to evaluate the stability behaviour of mefenamic acid under ICH Q1A (R2) recommended stress conditions. The drug was subjected to hydrolytic, oxidative, photolytic and thermal stress conditions. The drug was found susceptible to degradation under oxidative stress condition but was stable under hydrolytic, photolytic and thermal stress conditions. A total two degradation products were formed, which were separated using HPLC. The chromatographic separation was carried out on Sunfire ODS C-18 (250 × 4.6 mm, 5 μm) column. Optimum resolution was obtained using ammonium dihydrogen phosphate buffer (10 mM, pH 4) and acetonitrile programmed in isocratic elution mode in the ratio of 45:55 v/v at 225 nm using photodiode array detector at a flow rate of 1 mL/min. The designed method was validated as per ICH Q2 (R1) guidelines. The response of drug was linear in the concentration range of 10-100 μg/mL (R2 = 0.9998). The method was found specific, precise and accurate. The mean accuracy was found to be 100.46 %. The developed method was successfully applied for the analysis of marketed formulation.

scholarly journals Development of Stability Indicating RP-HPLC Method for Ertapenem in Bulk Drug and Pharmaceutical Dosage Form

2017 ◽  
Vol 16 (1) ◽  
pp. 21-28
Author(s):  
Ruchi Jain ◽  
Nilesh Jain ◽  
Deepak Kumar Jain ◽  
Avineesh Singh ◽  
Surendra Kumar Jain
Keyword(s):  
Dosage Form ◽  
Degradation Products ◽  
Hplc Method ◽  
Stress Conditions ◽  
Assay Method ◽  
Main Peak ◽  
Forced Degradation ◽  
Pharmaceutical Dosage Form ◽  
Stability Indicating ◽  
Bulk Drug

A simple, inexpensive, rapid and novel stability indicating isocratic HPLC method has been developed and validated for quantitative analysis of ertapenem sodium in the bulk drug and in pharmaceutical dosage form. An isocratic separation of ertapenem sodium was achieved on Hypersil BDS C18 column (4.6 x 250 mm, 5 ? particle size) as the stationary phase with a flow rate of 1.2 ml/min and using a UV detector to monitor the eluate at 298 nm. The mobile phase consisted of acetonitrile : water (60:40v/v) and pH adjusted 2.9 by othophosphoric acid enabled separation of the drug from its degradation products. The method was validated for linearity, accuracy (recovery), precision, specificity and robustness. The linearity of the method was satisfactory over the range 2-10 ?g/ml (correlation coefficient 0.999). Recovery of ertapenem sodium from the pharmaceutical dosage form ranged from 99.97 to 103.7%. Ertapenem sodium was subjected to stress conditions [hydrolysis (acid, base), oxidation, photolysis and thermal degradation] and the samples were analyzed by this method. The forceddegradation study with ertapenem sodium showed that it was degraded under basic condition. The drug was stable under the other stress conditions investigated. Ertapenem sodium was found to be less stable in solution state, whereas it was comparatively much stable in solid state. The degradation products were well resolved from main peak. The forced degradation study prove the stability indicating power of the method and therefore, the validated method may be useful for routine analysis of ertapenem sodium as bulk drug, in respective dosage forms, for dissolution studies and as stability indicating assay method in pharmaceutical laboratories and industries.Dhaka Univ. J. Pharm. Sci. 16(1): 21-28, 2017 (June)

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