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Accuracy, intra-day precision, and recovery (n = 3)
| Porphyrin | Accuracy [%, (±SD)] | Intra-day precision [%] | Recovery [%, (±SD)] |
|---|---|---|---|
| Uroporphyrin I | 113 (±14) | 3 | 67 ( ±6) |
| 7-Carboxylporphyrin I | 93 (±1) | 1 | 79 ( ±2) |
| 6-Carboxylporphyrin I | 99 (±6) | 3 | 88 ( ±5) |
| 5-Carboxylporphyrin I | 97 (±7) | 5 | 84 ( ±2) |
| Coproporphyrin I | 99 (±4) | 2 | 99 ( ±3) |
| Mesoporphyrin IX | ISvol | 4 | 79 ( ±1) |
| Protoporphyrin IX | 81 (±1) | 5 | 55 ( ±9) |
