Name of the drug Actual concentration (µg mL-1) Intra-day Inter-day
Found concentration (µg mL-1) ± SD RSD (%) RME (%) Found concentration  (µg mL-1) ± SD RSD (%) RME (%)
MET 50 49.28 ± 0.4124 0.837 0.374 49.928 ± 0.053 0.105 0.047
100 99.88 ± 0.0525 0.052 0.023 99.876 ± 0.084 0.084 0.038
150 149.90 ± 0.0746 0.049 0.022 149.92 ± 0.031 0.021 0.009
PIOG 1.5 1.474 ± 0.018 1.232 0.551 1.456 ± 0.038 2.597 1.162
3 2.920 ± 0.052 1.796 0.803 2.924 ± 0.048 1.651 0.738
4.5 4.446 ± 0.040 0.894 0.400 4.462 ± 0.024 0.535 0.239
GLIB 0.5 0.484 ± 0.005 1.132 0.506 0.462 ± 0.024 5.168 2.311
1.0 0.958 ± 0.022 2.263 1.012 0.972 ± 0.016 1.691 0.756
1.5 1.480 ± 0.012 0.828 0.370 1.478 ± 0.011 0.741 0.331
Table 2: Intra-day and inter-day precision and accuracy of MET, PIOG and GLIB.