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Determination of Fe3+ and Cr2O72− in real samples (n = 3).
| Sample | Spiked (nM) | Found (nM) | Recovery (%) |
|---|---|---|---|
| Tap water (Fe3+) | 20.0 | 22.1 | 110.5 |
| 40.0 | 45.7 | 114.3 | |
| 60.0 | 61.6 | 102.7 | |
| 800 | 88.7 | 110.9 | |
| Tap water (Cr2O72−) | 20.0 | 20.9 | 104.5 |
| 40.0 | 41.3 | 103.3 | |
| 60.0 | 60.9 | 101.5 | |
| 80.0 | 80.8 | 101.0 |
