Rapid and Simple RPHPLC Method for the Estimation of Metformin in Rat Plasma

A simple reverse phase high-performance liquid chromatographic method has been developed for determining the concentration of metformin in rat plasma. The method employs C(18) column (300 mm × 2.4 mm i.d.), ammonium acetate (0.15 M) and acetonitrile (90:10; pH-5.5; 1.0 ml/min) as mobile phase and ul...

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Detalles Bibliográficos
Autores principales: Wanjari, M. M., There, A. W., Tajne, M. R., Chopde, C. T., Umathe, S. N.
Formato: Texto
Lenguaje:English
Publicado: Medknow Publications 2008
Materias:
Research Paper
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2792473/
https://www.ncbi.nlm.nih.gov/pubmed/20046712
http://dx.doi.org/10.4103/0250-474X.41455
Descripción
Sumario:A simple reverse phase high-performance liquid chromatographic method has been developed for determining the concentration of metformin in rat plasma. The method employs C(18) column (300 mm × 2.4 mm i.d.), ammonium acetate (0.15 M) and acetonitrile (90:10; pH-5.5; 1.0 ml/min) as mobile phase and ultraviolet detection at 236 nm. Acetonitrile was used to simultaneously deproteinize rat plasma and extract metformin. The assay was linear in the concentration range of 0.33 μg-16.6 μg/ml with co-efficient of correlation 0.994. The retention time was 4.7 min. The method was found to be precise (% CV < 15%), accurate and suitable for pharmacokinetic study of orally administered metformin in rats.

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