Table 1 Precisions of angoroside C, cinnamic acid and harpagoside
Concentration (μg/mL) | Intra-day (n = 3) | Inter-day (n = 3) RSD (%) | ||
|---|---|---|---|---|
Found | RSD (%) | Accuracy (%) | ||
Angoroside C | ||||
5 | 5.31 ± 0.09 | 1.72 | 106.16 | 1.88 |
50 | 51.37 ± 0.76 | 1.50 | 102.74 | 1.69 |
200 | 203.45 ± 1.21 | 0.60 | 101.72 | 0.63 |
Cinnamic acid | ||||
2.5 | 2.58 ± 0.04 | 1.54 | 103.35 | 2.29 |
25 | 26.07 ± 0.11 | 0.42 | 104.27 | 1.70 |
100 | 100.32 ± 0.65 | 0.64 | 100.32 | 1.16 |
Harpagoside | ||||
5 | 5.26 ± 0.12 | 2.31 | 105.25 | 2.06 |
50 | 51.75 ± 0.18 | 0.35 | 103.50 | 1.46 |
200 | 203.94 ± 1.34 | 0.66 | 101.97 | 0.99 |