Table 4.
Application of the fixed time method in the quantification of the studied drugs with KMnO4
| Compound | Time (min.) | Regression Equations | Correlation Coefficient |
|---|---|---|---|
| At 610 nm | |||
| Acarbose | 2.5 | A= -0.0148 + 0 .0081C | r = 0.9980 |
| 5 | A= -0.0133 + 0.0180 C | r = 0.9997 | |
| 10 | A= -0.0111 + 0.0207 C | r = 0.9998 | |
| 15 | A= -0.0073 + 0.0224C | r = 0.9999 | |
| Miglitol | 5 | A= -0.0105 + 0.0459 C | r = 0.9996 |
| 10 | A= -0.0094 + 0.0615C | r = 0.9997 | |
| 15 | A= -0.0080 + 0.0694 C | r = 0.9998 | |
| 20 | A= -0.0053 + 0.0741 C | r = 0.9998 | |
| 25 | A= -0.0038 + 0.0780 C | r = 0.9999 | |
| At 525 nm | |||
| Acarbose | 2.5 | A= -0.0170 + 0.0160 C | r = 0.9970 |
| 5 | A= -0.0173 + 0.0209 C | r = 0.9994 | |
| 10 | A= -0.0094 + 0.0256 C | r = 0.9999 | |
| 15 | A= -0.0043 + 0.0280 C | r = 0.9999 | |
| Miglitol | 5 | A= -0.0067 + 0.0212 C | r = 0.9980 |
| 10 | A= -0.0095 + 0.0360 C | r = 0.9993 | |
| 15 | A= 0.0002 + 0.0451 C | r = 0.9995 | |
| 20 | A= 0.0045 + 0.0534 C | r = 0.9996 | |
| 25 | A= 0.0098 + 0.0594C | r = 0.9998 | |