| 加标水样 | 加标浓度 (mg/L) | 测得浓度 (mg/L ± SD) | 回收率 (%) | RSD (n = 5, %) |
| 湖水1 | 0 | 0.15 ± 0.007 | / | 4.7 |
|
| 0.2 | 0.34 ± 0.018 | 95.0 | 5.3 |
|
| 0.5 | 0.66 ± 0.020 | 102.0 | 3.0 |
| 河水1 | 0 | 0.20 ± 0.01 | / | 5.0 |
|
| 0.2 | 0.38 ± 0.011 | 90.0 | 2.9 |
|
| 0.5 | 0.69 ± 0.029 | 98.0 | 4.2 |