Table 1 Precision of determination for the standards of two major isoflavones
| Compounds |
Concentration (μg/mL) |
Intra-day RSD% (n= 6) |
Inter-day RSD% (n= 6) |
|---|---|---|---|
| 30.5 | 1.90 | 1.97 | |
| Tectoridin | 60.9 | 1.03 | 1.86 |
| 118.5 | 0.82 | 1.52 | |
| 38.1 | 1.65 | 1.98 | |
| 6"-O-xylosyl-tectoridin | 69.4 | 0.78 | 1.95 |
| 129.7 | 0.72 | 1.41 |