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Repeatability and intermediate precision data for ferulic acid analysis.
| Sample solution (μg/mL) |
Measured concentration ± SD∗
(μg/mL) |
RSD∗∗ (%) |
|---|---|---|
| Repeatability (n = 9) | ||
| 15 | 16.82 ± 0.24 | 1.43 |
| 40 | 40.21 ± 0.31 | 0.77 |
| 65 | 64.67 ± 0.30 | 0.46 |
| Intermediate precision (n = 3) | ||
| Day 2 | ||
| 40 | 39.44 ± 0.05 | 0.13 |
| Day 3 | ||
| 40 | 40.32 ± 0.78 | 1.93 |
∗SD = standard deviation; ∗∗RSD = relative standard deviation.
