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MS parameters of 4 alkaloids.
| Analyte | Retention time (min) | Parent ion (m/z) | Product ion (m/z) | Collison energy (ev) |
|---|---|---|---|---|
| Peimisine | 2.40 | 428.40 | 114.15*, 337.22 | 29.43 |
| Imperialine | 1.89 | 430.45 | 138.24*, 412.48 | 47.67 |
| Peiminine | 2.90 | 430.40 | 396.38*, 112.08 | 54,85 |
| Peimine | 2.59 | 434.45 | 398.46*, 414.39 | 55.00 |
