Table 1 Precision, stability and repeatability of the Angong Niuhuang Wan sample, and the contents of nine compounds
Sample | Precision (RSD, n = 6) (%) | Stability (RSD, 24 h) (%) | Repeatability (RSD, n = 6) (%) | Contents in AGNHW |
|---|---|---|---|---|
Geniposide | 0.93 | 0.79 | 3.74 | 5.799 ± 0.033 mg/pill |
Epiberberine | 3.77 | 3.28 | 4.79 | 1.844 ± 0.045 mg/pill |
Coptisine | 1.02 | 0.97 | 4.79 | 1.752 ± 0.167 mg/pill |
Baicalin | 1.36 | 1.16 | 3.88 | 10.42 ± 0.214 mg/pill |
Palmatine | 1.22 | 1.14 | 3.86 | 1.856 ± 0.009 mg/pill |
Berberine | 0.78 | 0.67 | 3.75 | 9.258 ± 0.021 mg/pill |
Wogonoside | 4.34 | 3.90 | 3.86 | 1.153 ± 0.043 mg/pill |
Baicalein | 1.66 | 1.62 | 3.55 | 3.454 ± 0.064 mg/pill |
Wogonin | 2.14 | 1.97 | 3.56 | 1.340 ± 0.036 mg/pill |