Table 2.
Intra and inter-day variations of the method (n = 6).
| Compound | Actual retention time | Intra-day precision (%RSD) |
Inter-day precision (%RSD) |
||||||
|---|---|---|---|---|---|---|---|---|---|
| Standard |
Sample |
Standard |
Sample |
||||||
| Retention time | Area | Retention time | Area | Retention time | Area | Retention time | Area | ||
| Ascorbic acid | 2.677 | 1.12 | 0.54 | 2.11 | 0.44 | 2.23 | 0.75 | 1.50 | 0.81 |
| Gallic acid | 6.987 | 0.51 | 1.58 | 0.21 | 1.78 | 0.65 | 0.70 | 1.27 | 0.69 |
| Rutin | 8.024 | 1.24 | 0.69 | 1.22 | 1.87 | 0.99 | 1.55 | 0.58 | 1.15 |
| Ellagic acid | 8.825 | 0.65 | 0.74 | 1.61 | 0.88 | 0.28 | 0.67 | 2.01 | 1.64 |