Table 1. Optimized multiple reaction monitoring transition settings for UPLC-MRM-MS measurement of artemisinin, artemisinic acid, dihydroartemisinic acid, artemisinic alcohol, and dihydroartemisinic alcohol (Khairul Ikram et al., 2017).
| Parent (m/z) | Daughter (m/z) | Cone voltage | Collision voltage | |
|---|---|---|---|---|
| Artemisinin | 283.19 |
265.22 247.19 219.22 |
12 12 12 |
14 8 8 |
| Artemisinic acid | 235.16 |
217.21 199.25 189.22 |
18 18 18 |
14 16 10 |
| Dihydroartemisinic acid | 237.16 |
163.17 107.12 81.10 |
16 16 16 |
28 26 18 |
| Artemisinic alcohol | 221.16 |
203.27 147.09 |
14 14 |
20 10 |
| Dihydroartemisinic alcohol | 223.22 |
205.27 109.13 95.07 |
14 14 14 |
24 14 12 |