Table 2.
The recovery rate test (n = 3).
| Composition | Label | Sample quantity (mg) | Adding amount (mg) | Recovery rate (%) | RSD (%) |
|---|---|---|---|---|---|
| Acid A | 1 | 0.5385 | 0.2481 | 95.4 | 1.41 |
| 2 | 0.5293 | 0.2417 | 97.6 | ||
| 3 | 0.5236 | 0.2352 | 94.4 | ||
| 4 | 0.5427 | 0.5228 | 97.7 | 1.02 | |
| 5 | 0.5328 | 0.5173 | 95.9 | ||
| 6 | 0.5343 | 0.5284 | 98.6 | ||
| 7 | 0.5422 | 0.7362 | 98.1 | 1.28 | |
| 8 | 0.5375 | 0.7340 | 100.1 | ||
| 9 | 0.5432 | 0.7274 | 99.4 | ||
| Acid B | 1 | 0.1745 | 0.0936 | 93.7 | 1.28 |
| 2 | 0.1715 | 0.0915 | 94.2 | ||
| 3 | 0.1697 | 0.0867 | 96.0 | ||
| 4 | 0.1759 | 0.1864 | 95.3 | 1.75 | |
| 5 | 0.1726 | 0.1735 | 96.9 | ||
| 6 | 0.1731 | 0.1726 | 98.7 | ||
| 7 | 0.1757 | 0.2619 | 97.1 | 1.19 | |
| 8 | 0.1742 | 0.2700 | 98.6 | ||
| 9 | 0.176 | 0.2623 | 99.4 |