Table 2.
The precision, repeatability, stability, and recovery of 11 alkaloid compounds.
| Analytes | Precision (RSD%, n = 6) | Repeatability (RSD%, n = 6) | Stability (RSD%, n = 6) | Recovery (n = 6) | ||||
|---|---|---|---|---|---|---|---|---|
| Original (μg) | Spiked (μg) | Detected (μg) | Recovery (%) | RSD (%) | ||||
| Sinomenine | 2.28 | 1.50 | 0.89 | 5.94 × 103 | 5.89 × 103 | 1.18 × 103 | 99.4 | 2.37 |
| Magnoflorine | 1.28 | 2.26 | 0.63 | 1.98 × 103 | 1.58 × 103 | 3.62 × 103 | 103.5 | 1.07 |
| Coclaurine | 1.46 | 1.15 | 2.01 | 126 | 147 | 271 | 98.8 | 3.52 |
| Acutumine | 0.72 | 2.25 | 3.67 | 83.8 | 114 | 200 | 101.7 | 1.88 |
| Higenamine | 1.01 | 1.35 | 3.26 | 86.5 | 80.4 | 166 | 99.1 | 2.24 |
| Sinoacutine | 1.00 | 4.53 | 2.17 | 8.98 | 9.84 | 18.8 | 99.6 | 3.52 |
| Palmatine | 2.60 | 4.00 | 1.55 | 10.3 | 10.8 | 20.9 | 97.7 | 3.72 |
| Magnocurarine | 2.06 | 4.54 | 1.95 | 5.12 | 7.23 | 12.4 | 100.0 | 3.67 |
| Columbamine | 3.44 | 3.83 | 1.90 | 8.50 | 8.74 | 17.2 | 99.9 | 2.04 |
| 8-Oxypalmatine | 3.03 | 4.63 | 4.47 | 1.16 | 1.37 | 2.55 | 101.5 | 1.84 |
| Jatrorrhizine | 2.19 | 4.15 | 4.58 | 3.53 | 3.71 | 7.24 | 100.1 | 2.59 |