Abstract
A high performance liquid chromatographic method
was developed to quantify alogliptin and pioglitazone
simultaneously in bulk and combined tablet dosage form. The
chromatographic analysis was done on a Zorbax C8 column
(150 mm x 4.6 mm internal diameter, 5 μm particle size) with
a mobile phase of 0.1 M ammonium acetate and methanol
(50:50, v/v) at 1.0 mL/min. The effluents were monitored at
248 nm and the retention time of alogliptin and pioglitazone
were 2.883 min and 4.329 min, respectively. Calibration
curves were linear from 6.25-18.75 μg/mL for alogliptin and
11.25-33.75 μg/mL for pioglitazone. The LOD and LOQ
values for alogliptin were 0.047 and 0.157 μg/mL, respectively;
corresponding values for pioglitazone were 0.085 and 0.284 μg/
mL, respectively. The precision for alogliptin and pioglitazone
was in the range of 0.094-0.303% and 0.072-0.239%,
respectively, with corresponding accuracy of 99.450-99.692%
and 100.184-100.422%. The developed and validated method
was successfully applied for the simultaneous determination
of alogliptin and pioglitazone in tablet formulation.
Keywords: Alogliptin, Pioglitazone, Liquid Chromatography,