Table 2 Intra- and Inter-day variation of the investigated compounds
Analytes | Concentration (μg/mL) | Intra-day RSD (%, n = 6) | Inter-day RSD (%, n = 6) |
|---|---|---|---|
Hypaphorine | 80.0 | 2.2 | 2.0 |
24.0 | 1.2 | 2.4 | |
8.0 | 3.2 | 4.6 | |
THSG | 872.0 | 1.5 | 1.4 |
261.6 | 0.6 | 2.1 | |
87.2 | 1.8 | 3.1 | |
Epicatechin | 80.0 | 1.1 | 2.0 |
24.0 | 0.6 | 1.8 | |
8.0 | 1.6 | 3.2 | |
Proanthocyanidin B2 | 80.0 | 1.1 | 2.6 |
24.0 | 1.4 | 1.5 | |
8.0 | 1.9 | 1.4 | |
Proanthocyanidin B1 | 82.4 | 1.2 | 4.0 |
24.7 | 1.6 | 1.5 | |
8.2 | 2.0 | 2.7 | |
Catechin | 80.0 | 0.9 | 3.0 |
24.0 | 1.4 | 1.5 | |
8.0 | 2.4 | 3.4 | |
Gallic Acid | 104.0 | 1.1 | 4.4 |
31.2 | 2.2 | 3.0 | |
10.4 | 2.0 | 4.5 |