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Colorimetric Determination of Amoxicillin in Pure and some Pharmaceutical Formulations Via Reaction with Potassium Permanganate as Oxidant Reagent

Authors :
Luma Amer Musa
Sahar R. Fadhel
Abbas Shebeeb Al-kadumi
Mohammed Abdullah Ahmed
Source :
International Journal of Pharmaceutical Quality Assurance. 10
Publication Year :
2019
Publisher :
Dr. Yashwant Research Labs Pvt. Ltd., 2019.

Abstract

We proposed two simple, rapid, and convenient spectrophotometric methods are described for the determination of Amoxicillin in bulk and its pharmaceutical preparations. They are based on the measurement of the flame atomic emission of potassium ion (in first method) and colorimetric determination of the green colored solution for manganite ion at 610 nm formed after reaction of Amoxicillin with potassium permanganate as oxidant agent (in the second method) in basic medium. The working conditions of the methods were investigated and optimized. Beer's law plot showed a good correlation in the concentration range of 5-45 μg/ml. The detection limits and relative standared deviations were (2.573, 2.814 μg/ml) (2.137, 2.498) for the flame emission photometric method and (1.844, 2.016 μg/ml) (1.645,1.932) for colorimetric methods for capsules and suspensions respectively. The methods were successfully applied to the determination of Amoxicillin in capsules and suspensions, and the obtained results were in good agreement with the label claim. No interference was observed from the commonly encountered additives and expectancies.

Details

ISSN :
09759506
Volume :
10
Database :
OpenAIRE
Journal :
International Journal of Pharmaceutical Quality Assurance
Accession number :
edsair.doi...........0dd9081f22b55aaa91a304ec36819f50