alexa Separation and quantification of eight antidiabetic drugs on a high-performance liquid chromatography: its application to human plasma assay.
Biochemistry

Biochemistry

Biochemistry & Analytical Biochemistry

Author(s): Lakshmi KS, Rajesh T

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Abstract An analytical method based on isocratic reverse phase high-performance liquid chromatography was developed and validated for the separation and quantification of eight antidiabetic drugs: rosiglitazone, pioglitazone, glipizide, gliclazide, repaglinide, nateglinide, glibenclamide, and glimepiride for their application in human plasma assay. Metformin is used as internal standard. Analysis was done on Onyx monolithic C(18) column (100 × 4.6 mm, i.d., 5 μm) using a mixture of 0.05\% formic acid in water and methanol in the ratio of 42 : 58 (v/v) fixed at a flow rate of 0.5 mL/min, and they were monitored at 234 nm. Separation was achieved in less than 20 min. The calibration curves were linear in the range of 50-2000 ng/mL. The method was validated for its recovery, intra- and interday precision, stability, specificity, and selectivity. Plasma samples were prepared using solid-phase extraction of analytes. Hence, the developed method was found to be suitable for the routine analysis of selected antidiabetic drugs in biological matrices.
This article was published in ISRN Pharm and referenced in Biochemistry & Analytical Biochemistry

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