Table 4.
Recovery and RSD values of red ginseng powder (9 determinations over 3 concentration levels)
| Component | Official method | Proposed method | Bias (%) | ||
|---|---|---|---|---|---|
|
|
|
||||
| Recovery (%)1) | RSD | Recovery (%)1) | RSD | ||
|
| |||||
| Rg1 | 102.8 | 2.82 | 102.8 | 5.71 | 0.0 |
| Re | 98.1 | 3.17 | 101.6 | 5.26 | 3.4 |
| Rf | 101.0 | 5.66 | 103.6 | 5.07 | 2.5 |
| Rh1 | 82.5 | 9.92 | 103.6 | 2.87 | 20.4 |
| Rg2 (S) | 78.1 | 5.83 | 97.2 | 5.10 | 19.6 |
| Rg2 (R) | 101.1 | 5.79 | 105.2 | 2.60 | 3.9 |
| Rb1 | 95.5 | 6.83 | 101.9 | 4.48 | 6.2 |
| Rc | 98.0 | 6.67 | 101.9 | 3.46 | 3.8 |
| Rb2 | 99.4 | 6.82 | 102.4 | 4.85 | 2.9 |
| Rd | 98.3 | 8.10 | 99.5 | 4.61 | 1.2 |
| Rg3 (S) | 97.3 | 5.64 | 95.0 | 4.90 | 2.5 |
| Rg3 (R) | 96.2 | 6.21 | 96.8 | 4.49 | 0.7 |
RSD, relative standard deviation.
1)Mean value of 9 determinations over 3 concentration levels.