No. | Weight of tea saponin in first/mg | Additive amount/mg | Determination weight of tea saponin /mg | Recovery rate/% |
1 | 0.200 | 0.153 | 0.338 | 90.2 |
2 | 0.200 | 0.205 | 0.397 | 96.1 |
3 | 0.200 | 0.252 | 0.441 | 95.6 |
4 | 0.200 | 0.294 | 0.463 | 89.5 |
5 | 0.200 | 0.345 | 0.537 | 97.7 |