Table 2.
Determination and recovery of AA in pharmaceutical forms.
| Sample Type | Amount labeled | Amount added | Amount found | Recovery (%) | RSD (%) | Bias (%) |
| Effervescent tablet-1 | 1000 mg | - | 986.1 mg | 98.61 | 3.79 | -1.39 |
| Effervescent tablet-1 | - | 1000 mg | 990.3 mg | 99.03 | 2.95 | -0.97 |
| Effervescent tablet-1 | - | 1000 mg | 988.7 mg | 98.87 | 2.61 | -1.13 |
| Effervescent tablet-2 | 500 mg | - | 485.2 mg | 97.04 | 2.97 | -2.96 |
| Effervescent tablet-2 | - | 500 mg | 489.1 mg | 97.82 | 4.88 | -2.18 |
| Effervescent tablet-2 | - | 500 mg | 498.9 mg | 99.78 | 3.50 | -0.22 |
| Effervescent tablet-3 | 240 mg | - | 243.1 mg | 101.29 | 3.97 | 1.29 |
| Chewable tablet-1 | 500 mg | - | 483.5 mg | 96.7 | 3.10 | -3.30 |
| Chewable tablet-1 | - | 500 mg | 493.4 mg | 98.68 | 3.17 | -1.32 |
| Chewable tablet-1 | - | 500 mg | 499.1 mg | 99.82 | 4.16 | -0.18 |
| Chewable tablet-2 | 250 mg | - | 243.8 | 97.52 | 2.85 | -2.48 |
| Ampoule | 500 mg/5 mL | - | 498.7 | 99.74 | 4.06 | -0.26 |
| Sachet | 75 mg | - | 74.5 | 99.33 | 3.52 | -0.67 |