Table 7.
Validation parameters of the methods used for polyphenol determination.
| Compound | Calibration Curves | R2 | LOD (mg/L) | LOQ (mg/L) |
|---|---|---|---|---|
| Pedunculagin bis-HHDP-glucose | y = 6263.4x − 2220.5 | R2 = 0.9989 | 0.29 | 0.59 |
| Agrimoniin | y = 11296x − 1056 | R2 = 0.9999 | 0.16 | 0.32 |
| Quercetin-3-glucoside | y = 15513x + 2283.2 | R2 = 0.9996 | 0.11 | 0.22 |
| Quercetin 3-d-galactoside | y = 19134x + 1932.3 | R2 = 0.9999 | 0.09 | 0.18 |
| Tiliroside | y = 11305x + 2734.3 | R2 = 0.9998 | 0.15 | 0.30 |
| kaempferol 3-glucoside | y = 15287x − 166.39 | R2 = 0.9997 | 0.11 | 0.22 |
| Quercetin | y = 24852x − 1257.3 | R2 = 0.9992 | 0.07 | 0.14 |
| Kaempferol | y = 18344x − 2565.7 | R2 = 0.9999 | 0.09 | 0.18 |
| Elllagic acid | y = 17521x − 816.99 | R2 = 0.9998 | 0.10 | 0.20 |
| (−)-epicatechin-phloroglucnol adduct | y = 75639x + 43737 | R2 = 0.9974 | 0.34 | 0.68 |
| (−)-epicatechin | y= 98857x − 1666.1 | R2 = 0.9999 | 0.03 | 0.06 |
| (+)-catechin | y = 99608x + 40.24 | R2 = 0.9999 | 0.04 | 0.08 |
R2—correlation coefficient; LOD—limit of detection; LOQ—limit of quantification.