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| Samples | Added (μM) | Found (μM) | Recovery (%) | *RSD (%) |
|---|---|---|---|---|
| River water | 10 | 9.43 | 94.3 | 3.5 |
| Tap water | 10 | 10.3 | 103 | 3.3 |
| Sea water | 10 | 10.2 | 102 | 3.2 |
*Relative standard deviation of 3 individual measurements.
