Metformine Pioglitazone Glibenclamide Gliclazide (IS)
Retention time (min) Peak area Retention time (min) Peak area Retention time (min) Peak area Retention time (min) Peak area
Con. range 50-300 µg mL-1 1.5- 9 µg mL-1 0.5-3 µg mL-1 10 µg mL-1
Mean 2.24 3336282 2.82 3253041 5.85 3798394 6.74 2388208
SD 0.0194 1372116 0.0147 1339617 0.0116 1705821 0.0126 1842.91
RSD 0.8632 41.12709 0.5204 41.18045 0.1997 44.90902 0.1876 0.07716
Table 1: Results of system suitability study.