Table 4.
Precision, repeatability of seven analytes
|
Analytes |
Precision (RSD,%) |
Repeatability (RSD,%; n = 6) |
|||||
|---|---|---|---|---|---|---|---|
| Intraday (n = 6) | Interday (n = 6) | SWD | SFZYD | XFSWD | THSWD | QLSWD | |
| Gallic acid |
1.75 |
1.78 |
1.81 |
1.26 |
2.84 |
3.32 |
1.31 |
| Protocatechuic acid |
0.76 |
1.21 |
3.16 |
1.90 |
2.72 |
4.18 |
3.19 |
| Vanillic acid |
1.31 |
1.55 |
1.79 |
1.05 |
2.26 |
3.97 |
2.80 |
| Caffeic acid |
0.98 |
0.97 |
2.27 |
2.47 |
1.60 |
4.52 |
3.04 |
| Paeoniflorin |
1.06 |
2.01 |
2.72 |
3.58 |
2.38 |
3.96 |
2.19 |
| Ferulic acid |
0.88 |
1.05 |
2.19 |
3.01 |
1.26 |
2.95 |
2.22 |
| Senkyunolide I | 1.16 | 1.12 | 2.22 | 3.97 | 1.43 | 1.82 | 3.75 |