Table 3.
Standard errors for each time point of the dissolution of Viagra® and the 18 counterfeited/imitated samples.
| Sample no. | Time (min) |
|||||||
|---|---|---|---|---|---|---|---|---|
| 0 | 5 | 10 | 15 | 30 | 45 | 60 | 120 | |
| VIAGRA | 0.00 | 13.22 | 9.29 | 6.34 | 4.51 | 3.29 | 3.32 | 2.59 |
| 1 | 0.00 | 6.46 | 4.53 | 1.81 | 1.79 | 1.03 | 0.58 | 0.38 |
| 2 | 0.00 | 16.08 | 17.31 | 19.89 | 12.66 | 7.38 | 5.37 | 2.20 |
| 3 | 0.00 | 10.17 | 1.83 | 1.46 | 2.00 | 1.69 | 7.69 | 2.34 |
| 4 | 0.00 | 5.05 | 3.68 | 1.59 | 1.72 | 1.57 | 1.54 | 1.05 |
| 5 | 0.00 | 13.45 | 15.70 | 5.10 | 2.12 | 0.61 | 0.81 | 0.88 |
| 6 | 0.00 | 150.96 | 17.14 | 7.36 | 2.81 | 1.24 | 0.93 | 1.29 |
| 7 | 0.00 | 16.04 | 12.60 | 8.23 | 1.87 | 1.95 | 1.37 | 0.53 |
| 8 | 0.00 | 17.50 | 19.59 | 18.06 | 10.45 | 5.68 | 3.29 | 1.03 |
| 9 | 0.00 | 7.67 | 3.56 | 3.78 | 9.38 | 9.46 | 8.77 | 5.31 |
| 10 | 0.00 | 38.11 | 30.63 | 31.84 | 21.65 | 17.74 | 15.19 | 9.27 |
| 11 | 0.00 | 9.64 | 8.78 | 11.61 | 8.14 | 5.35 | 4.55 | 3.15 |
| 12 | 0.00 | 10.02 | 13.07 | 11.29 | 6.84 | 4.67 | 0.58 | 3.60 |
| 13 | 0.00 | 0.00 | 0.00 | 173.21 | 57.32 | 15.80 | 6.51 | 4.67 |
| 14 | 0.00 | 3.00 | 4.19 | 4.42 | 4.17 | 3.34 | 3.35 | 2.05 |
| 15 | 0.00 | 29.41 | 14.38 | 15.73 | 13.06 | 11.07 | 9.79 | 8.98 |
| 16 | 0.00 | 84.65 | 20.46 | 15.98 | 11.87 | 9.22 | 8.40 | 7.09 |
| 17 | 0.00 | 75.49 | 28.56 | 15.80 | 13.39 | 15.84 | 14.33 | 14.91 |
| 18 | 0.00 | 84.13 | 11.22 | 7.02 | 18.22 | 83.74 | 83.47 | 3.62 |