Table 6.
Quantitative, Qualifier ions and MS parameters of eight alkaloids and I.S.
| Compound | Ion Pair (m/z) | Qualifier Ion (m/z) | Fragment (V) | CE (V) | Polarity |
|---|---|---|---|---|---|
| corydaline | 370.2→192.1 | 165.1 | 170 | 30 | Positive |
| dehydrocorydaline | 366.1→350.1 | 334.1 | 140 | 30 | Positive |
| tetrahydropalmatine | 356.0→192.0 | 165.0 | 159 | 27 | Positive |
| protopine | 354.1→188.0 | 149.0 | 170 | 30 | Positive |
| palmatine | 352.1→336.2 | 294.1 | 155 | 40 | Positive |
| tetrahydroberberine | 340.1→176.1 | 149.0 | 168 | 40 | Positive |
| columbamine | 339.2→323.2 | 295.1 | 160 | 29 | Positive |
| berberine | 336.2→320.1 | 292.2 | 136 | 30 | Positive |
| coptisine | 320.2→292.2 | 292.2 | 167 | 29 | Positive |
| berberrubine | 322.2→307.2 | 250.1 | 160 | 29 | Positive |
| theophyline (I.S.) | 181.2→124.0 | 108.9 | 120 | 14 | Positive |
The cell accelerator volltage value of the compounds are 5V.