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| Sample | Add (μM) | Found (μM) | Recovery (%) | RSD (%) |
|---|---|---|---|---|
| Lake water | 0 | 0.020 | — | 1.4 |
| 0.50 | 0.51 | 102.6 | 1.6 | |
| 1.0 | 1.1 | 105.7 | 2.0 | |
| 2.0 | 2.0 | 97.79 | 0.5 | |
| Waste water | 0 | 0.042 | — | 1.7 |
| 0.50 | 0.52 | 104.0 | 4.1 | |
| 1.0 | 1.1 | 102.1 | 3.6 | |
| 2.0 | 2.0 | 101.7 | 1.8 |
