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Intra-day and inter-day precision of tetramethylpyrazine, ferulic acid, nodakenin, and isoimperatorin in rabbit plasma (n = 6).
| Component | Concentration (ng/ml) | Intra-day RSD (%) | Inter-day RSD (%) |
|---|---|---|---|
| Tetramethylpyrazine | 2,788.000 | 1.14 | 2.50 |
| 1,394.000 | 1.98 | 2.55 | |
| 13.940 | 2.14 | 3.25 | |
| Ferulic acid | 3,865.000 | 2.30 | 3.07 |
| 1,932.500 | 2.07 | 2.24 | |
| 19.325 | 2.12 | 4.85 | |
| Nodakenin | 1,027.500 | 2.40 | 3.01 |
| 318.525 | 2.47 | 3.58 | |
| 3.18525 | 2.81 | 3.67 | |
| Isoimperatorin | 1,328.000 | 2.40 | 2.91 |
| 46.480 | 2.68 | 2.63 | |
| 23.240 | 3.02 | 3.49 |
