| 取样量(g) | 样品含量(mg) | 加入量(mg) | 测得量(mg) | 回收率 | 平均回收率及RSD% | |
| 低 | 0.5012 | 0.0226 | 0.016 | 0.0386 | 97.8% | 98.8% RSD = 1.0% |
| 0.5036 | 0.0227 | 0.016 | 0.0387 | 95.1% | ||
| 中 | 0.5016 | 0.0226 | 0.020 | 0.0426 | 100.6% | |
| 0.5002 | 0.0225 | 0.020 | 0.0425 | 100.1% | ||
| 高 | 0.5062 | 0.0228 | 0.024 | 0.0468 | 99.4% | |
| 0.5097 | 0.0229 | 0.024 | 0.0469 | 99.9% | ||