项目 | 质控样真值范围 (mg/L) | 实验数据(mg/L) | 相对误差 (%) | ||
① | ② | 均值 | |||
F− | μ = 3.57 ± 0.20 | 3.55 | 3.62 | 3.58 | −0.56~1.40 |
Cl− | μ = 304 ± 7 | 297 | 297 | 297 | −2.30 |
| μ = 1.66 ± 0.06 | 1.61 | 1.66 | 1.64 | −3.01~0.00 |
| μ = 1.51 ± 0.05 | 1.56 | 1.56 | 1.56 | 3.31 |
| μ = 111 ± 5 | 108.2 | 108. 4 | 108.3 | −2.52~−2.34 |