DEVELOPMENT, COMPUTATIONAL STUDIES AND VALIDATION OF SPECTROPHOTOMETRIC METHOD OF METFORMIN HYDROCHLORIDE IN PHARMACEUTICAL FORMULATIONS

ABSTRACT Simple, fast, and sensitive spectrophotometric method was developed for the determination of metformin in pharmaceutical formulations. The spectrophotometric procedure was based on the oxidation of metformin with potassium permanganate in alkaline medium. The developed method was also valid...

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Bibliographic Details
Published in:Journal of the Chilean Chemical Society 2020-09, Vol.65 (3), p.4895-4899
Main Authors: Judeh, Ahmed Abu, Sarief, Abdulla, Umar, Yunusa, Ashwaq, Omar, Haque, Sk Manirul
Format: Article
Language:English
Subjects:
CHEMISTRY, MULTIDISCIPLINARY
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Summary:ABSTRACT Simple, fast, and sensitive spectrophotometric method was developed for the determination of metformin in pharmaceutical formulations. The spectrophotometric procedure was based on the oxidation of metformin with potassium permanganate in alkaline medium. The developed method was also validated according to International Conference on Harmonization guidelines parameters such as linearity, accuracy, precision, limit of detection and quantitation. Studies were conducted to investigate different parameters involved in color developments and optimized. The pure drug of metformin was extracted from a pharmaceutical dosage form. The extraction procedure was developed, and a possible reaction mechanism proposed in the manuscript. The IR spectrum of the extracted metformin was taken and compared with the simulated IR spectrum obtained from the density functional theory calculation. The vibrational assignment of the modes was done based on potential energy distribution.
ISSN:0717-9707
0717-9707
DOI:10.4067/s0717-97072020000204895