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| Sample | Labeled (μmol L−1) | Found (μmol L−1) | Added (μmol L−1) | Measured (μmol L−1) | RSD (%) | Recovery (%) |
|---|---|---|---|---|---|---|
| B080302 | 60.20 | 59.18 | 20.00 | 80.67 | 2.18 | 107.46 |
| 090904 | 60.20 | 60.03 | 60.00 | 121.96 | 3.23 | 103.22 |
| Normal human urine | — | 0.00 | 20.00 | 18.49 | 4.79 | 92.45 |
| 40.00 | 42.01 | 5.95 | 105.03 | |||
| 60.00 | 59.05 | 1.69 | 98.42 |
