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| Sample | Added (μgmL−1) | Detected (μgmL−1) | Relative error (%) |
|---|---|---|---|
| Serum 1 | 0.1 | 0.105±0.003 | 5.0 |
| 0.3 | 0.317±0.007 | 5.7 | |
| Serum 2 | 0.1 | 0.102±0.015 | 2.0 |
| 0.3 | 0.293±0.004 | 2.3 | |
| Serum 3 | 0.1 | 0.094±0.003 | 6.0 |
| 0.3 | 0.313±0.004 | 4.3 |
