Table 5.
MRM parameters of the 12 alkaloids and IS.
| Analytes | Q1 (Da) | Q3 (Da) | DP (V) | CE (eV) |
|---|---|---|---|---|
| coptisine | 320.1 | 292.1 | 110.1 | 42.3 |
| epiberberine | 336.1 | 320.2 | 101.0 | 46.2 |
| palmatine | 352.1 | 336.3 | 86.9 | 42.7 |
| berberine | 336.1 | 292.1 | 85.7 | 46.8 |
| 8-oxocoptisine | 336.1 | 308.2 | 102.6 | 38.1 |
| 8-oxoepiberberine | 352.2 | 308.3 | 105.5 | 48.2 |
| noroxyhydrastinine | 192.2 | 119.1 | 74.6 | 33.8 |
| corydaldine | 208.2 | 165.1 | 68.3 | 26.3 |
| dehydroevodiamine | 301.7 | 286.2 | 99.6 | 53.0 |
| evodiamine | 304.2 | 134.2 | 91.8 | 36.4 |
| wuchuyuamide-I | 352.3 | 158.2 | 55.8 | 31.7 |
| evocarpine | 340.2 | 186.1 | 136.5 | 54.5 |
| carbamazepine (IS) | 237.1 | 194.2 | 76.9 | 25.0 |