| 取样量 | 样品含量(mg) | 加入量(mg) | 测得量(mg) | 回收率 | 平均回收率及RSD% | |
| 低 | 5 ml | 0.5525 | 0.4344 | 0.9761 | 98.9% | 98.6% RSD = 0.7% |
| 5 ml | 0.5525 | 0.4344 | 0.9702 | 98.3% | ||
| 中 | 5 ml | 0.5525 | 0.5430 | 1.0865 | 99.2% | |
| 5 ml | 0.5525 | 0.5430 | 1.0906 | 99.6% | ||
| 高 | 5 ml | 0.5525 | 0.6516 | 1.1806 | 98.0% | |
| 5 ml | 0.5525 | 0.6516 | 1.1781 | 97.8% | ||