Different chromatographic methods for determination of alogliptin benzoate, metformin hydrochloride, and metformin impurity in bulk and pharmaceutical dosage form. Issue 4 (2nd February 2021)

• Record Type: Journal Article
• Authors: Magdy, Maimana A.; Ali, Nouruddin W.; Taha, Ahmed A.; Elgebaly, Ahmed M.; Farid, Nehal F.
• Is Part Of: Journal of separation science. Volume 44:Issue 4(2021)
• Page Start: 833
• Page End: 842
• Publication Date: 2021-02-02
• Subjects: alogliptin benzoate -- high performance liquid chromatography -- melamine -- metformin hydrochloride -- thin layer chromatography; Separation (Technology) -- Periodicals; Chromatographic analysis -- Periodicals; 543.089
• DOI: 10.1002/jssc.202000937
• Languages: English
• ISSNs: 1615-9306

Abstract

Abstract: Two simple, sensitive, and reproducible methods were developed for the determination of alogliptin and metformin hydrochloride in presence of metformin impurity "melamin" in pure form and in pharmaceutical formulation. Method (A) was a thin layer chromatographic method in which separation was achieved using ethyl acetate–methanol–formic acid (6:3.8:0.2, by volume) as a developing system followed by densitometric scanning at 230 nm. Method (B) was a high‐performance liquid chromatography method; separation was achieved on C18 column, the mobile phase consisted of a mixture of sodium lauryl sulfate buffer 0.1% w/v, pH 3: methanol in the ratio 70:30, v/v and measurement was done at 220 nm. System suitability testing parameters were calculated to ascertain the quality performance of the developed chromatographic methods. The proposed methods have been validated regarding accuracy, precision, and selectivity, moreover they have been successfully applied to Westirizide tablets containing both alogliptin and metformin hydrochloride, results indicate that there was no interference from additives. No significance difference was found when these methods were compared to the reported one.