Development and validation of a stability-indicating UPLC method for the determination of olmesartan medoxomil, amlodipine and hydrochlorothiazide degradation impurities in their triple-combination dosage form using factorial design of experiments.

Biomedical Chromatography : BMC
Vishnu Murthy MarisettiNaresh Kumar Katari

Abstract

The current work describes the development and validation of a stability-indicating UPLC method for the determination of olmesaratan medoxomil (OLM), amlodipine besylate (AMB), hydrochlorothiazide (HCT) and their degradation products in the triple-combination tablet dosage form. The separation was achieved using a Zorbax Eclipse plus C8 RRHD (100 mm × 3.0 mm), 1.8 μm column with gradient elution of mobile phase A containing 0.02 m of sodium phosphate buffer (pH 3.35) and mobile phase B as acetonitrile and water (90:10, v/v). The detector signal was monitored at UV 250 nm. Analytical performance of the optimized UPLC method was validated as per International Conference on Harmonization guidelines. The linearity ranges for OLM, AMB and HCT were 0.59-240, 0.30-60 and 0.37-150 μg/ml, respectively, with correlation coefficients >0.999. The dosage form was subjected to forced-degradation conditions of neutral, acidic and alkaline hydrolysis, oxidation and thermal and photodegradation. The method was proved to be stability indicating by demonstrating the specificity of the drugs from degradation products. The robustness of the method was evaluated through a two-level, three-factorial design with a multivariate approach. Statistical da...Continue Reading

References

Feb 1, 1981·Journal of Pharmaceutical Sciences·S L Daniels, A J Vanderwielen
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Jun 29, 2010·Indian Journal of Pharmaceutical Sciences·A R Rote, P D Bari
Feb 19, 2014·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Hanan A MereyAzza A Moustafa
Jun 1, 2014·Journal of Pharmaceutical Analysis·M BlessyY K Agrawal

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