Determination of dronedarone in the pharmaceutical dosage form by a stability-indicating micellar electrokinetic chromatography method

2013 ◽  
Vol 5 (12) ◽  
pp. 3106 ◽  
Author(s):  
Ana Isa Pedroso Marcolino ◽  
Maximiliano S. Sangoi ◽  
Martin Steppe ◽  
Andréa Inês Horn Adams ◽  
Clarice Madalena Bueno Rolim
Keyword(s):  
Dosage Form ◽  
Micellar Electrokinetic Chromatography ◽  
Electrokinetic Chromatography ◽  
Chromatography Method ◽  
Pharmaceutical Dosage Form ◽  
Stability Indicating

scholarly journals A Stability-Indicating HPLC-DAD Method for Determination of Stiripentol: Development, Validation, Kinetics, Structure Elucidation and Application to Commercial Dosage Form

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Hany W. Darwish ◽  
Ali S. Abdelhameed ◽  
Mohamed I. Attia ◽  
Ahmed H. Bakheit ◽  
Nasr Y. Khalil ◽  
...  
Keyword(s):  
Degradation Product ◽  
Dosage Form ◽  
Reversed Phase ◽  
Stress Conditions ◽  
Array Detector ◽  
Chromatography Method ◽  
Pharmaceutical Dosage Form ◽  
Stability Indicating ◽  
Relative Standard

A rapid, simple, sensitive, and accurate isocratic reversed-phase stability-indicating high performance liquid chromatography method has been developed and validated for the determination of stiripentol and its degradation product in its bulk form and pharmaceutical dosage form. Chromatographic separation was achieved on a Symmetry C18 column and quantification was achieved using photodiode array detector (DAD). The method was validated in accordance with the ICH requirements showing specificity, linearity (r2=0.9996, range of 1–25 μg/mL), precision (relative standard deviation lower than 2%), accuracy (mean recovery100.08±1.73), limits of detection and quantitation (LOD = 0.024 and LOQ = 0.081 μg/mL), and robustness. Stiripentol was subjected to various stress conditions and it has shown marked stability under alkaline hydrolytic stress conditions, thermal, oxidative, and photolytic conditions. Stiripentol degraded only under acidic conditions, forming a single degradation product which was well resolved from the pure drug with significantly different retention time values. This degradation product was characterized by1H-NMR and13C-NMR spectroscopy as well as ion trap mass spectrometry. The results demonstrated that the method would have a great value when applied in quality control and stability studies for stiripentol.

scholarly journals A NEW NP-UPLC METHOD FOR THE SEPARATION AND SIMULTANEOUS QUANTIFICATION OF RAMUCIRUMAB AND ERLOTINIB

2021 ◽  
pp. 75-81
Author(s):  
SIVA MADHU CHAITANYA ◽  
SRINATH NISSANKARARAO ◽  
SATYA LAKSHMI GANDHAM
Keyword(s):  
Liquid Chromatography ◽  
Dosage Form ◽  
Ultra Performance Liquid Chromatography ◽  
Chromatography Method ◽  
Pharmaceutical Dosage Form ◽  
Stability Indicating ◽  
Chiralcel Od ◽  
Successful Separation ◽  
Liquid Chromatography Method ◽  
Fine Resolution

Objective: This investigation demonstrates a stability-indicating and reliable “normal phase ultra-performance liquid chromatography” method to simultaneously quantify Ramucirumab and Erlotinib in the pharmaceutical dosage form. Methods: Successful separation was accomplished using Chiralcel-OD-3 column (50 mm x 4.6 mm, 3 μm) with an isocratic type of elution using a mobile phase containing n-hexane+isopropyl alcohol+methanol (89:10:1), respectively with 1.0 ml/min flow rate. The wavelength sensor was attuned at 266 nm to quantify Ramucirumab and Erlotinib. Results: Erlotinib and Ramucirumab peaks were eluted with fine resolution at retention times 1.7807 min and 3.175 min, respectively. In the 10-150 μg/ml and 1-15 μg/ml concentration ranges for Erlotinib and Ramucirumab, the calibration graphs were linear, with regression coefficients of 0.99928 and 0.99976, respectively. The suggested ultra-performance liquid chromatography approach has been shown as sensitive, precise, robust, accurate, specific and stability indicating through the resolution of Erlotinib and Ramucirumab from its degradation-based compounds. Conclusion: The established ultra-performance liquid chromatography technique was effectively extended to the evaluation of Erlotinib and Ramucirumab in the pharmaceutical dosage form and the test results appeared satisfactory.

Development and Validation of Two Robust Stability-Indicating Chromatographic Methods for Determination of Metolazone in Drug Substance and Pharmaceutical Dosage Form in the Presence of Its Degradation Products and Characterization of Main Degradation Products Based on LC-MS

2019 ◽  
Vol 58 (3) ◽  
pp. 251-261
Author(s):  
Hala E Zaazaa ◽  
Rasha Abdel-Ghany ◽  
M Abdelkawy ◽  
Mahmoud Sayed
Keyword(s):  
Dosage Form ◽  
Degradation Products ◽  
Hplc Method ◽  
Drug Substance ◽  
Design Parameters ◽  
Pharmaceutical Dosage Form ◽  
Stability Indicating ◽  
Chromatographic Methods ◽  
Hptlc Method

Abstract Two robust and selective stability-indicating chromatographic methods were developed and validated for the determination of metolazone in drug substance and pharmaceutical dosage form in the presence of its degradation products. The HPLC method employed a Kromasil C18 (250 × 4.6,5 μm) column and a mobile phase of acetonitrile: 0.2% orthophosphoric acid (32:68 v/v) at a flow rate 2 mL/min and detection at 238 nm. The separation was performed in HPLC isocratic mode. The robustness of the suggested method was assessed using the Plackett–Burman design, parameters affecting system suitability were established and non-significant intervals for the significant parameters were considered. The HPTLC method employed Nano-SIL-20 UV254 HPTLC plates as adsorbent, ethyl acetate: toluene: acetic acid solution (4:4:0.5, v/v/v), as a developing solvent system and densitometric detection at 238 nm. Metolazone was exposed to different stress conditions, including acid and alkaline hydrolysis and oxidative and photolytic degradation. The main degradation products obtained have been characterized and interpreted based on LC-MS. The linearity of the suggested methods was proved in the concentration range of 20–75 μg/mL for the HPLC method and 100–900 ng/spot for the HPTLC method. The suggested methods were validated according to international conference on harmonization guidelines. These methods were successfully dedicated for the estimation of metolazone in drug substance and pharmaceutical dosage form in the presence of its degradation products. The results of the suggested methods were evaluated and compared statistically with results obtained by an official method without finding any significant difference.

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