| Grippostad® tablets | Standard addition technique | ||
---|---|---|---|---|
 | Mean* ± SD | Taken (µg/mL) | Added (µg/mL) | Recovery%* |
PHE | 99.44 ± 1.38 | 0.5 | 0.25 | 99.20 |
0.5 | 101.15 | |||
1 | 98.90 | |||
Meana ± SD | 99.75 ± 1.22 | |||
IBU | 99.78 ± 1.27 | 20 | 10 | 99.80 |
20 | 99.82 | |||
40 | 101.34 | |||
Meana ± SD | 100.32 ± 0.88 |