| 样品 编号 | 测定次数 | 平均值ω/% | SD ω/% | RSD ω/% | 加标量ω/% | 回收率ω/% | ||
| 1 | 2 | 3 | ||||||
| Fe-1 | 16.497 | 16.425 | 16.515 | 16.479 | 0.048 | 0.003 | 0.2 | 98.6 |
| Fe-2 | 16.527 | 16.507 | 16.608 | 16.547 | 0.053 | 0.003 | 0.2 | 97.0 |