Table 1.
Fragmentation parameters for the phytohormones.
| Precursor ion (m/z) | ISO* (Da) | CID** (V) | Act Q*** | Fragments (Da) | |
|---|---|---|---|---|---|
| ABA | 263.0 | 2.0 | 30 | 0.250 | 152.0–154.0 |
| d6-ABA | 269.0 | 2.0 | 30 | 0.250 | 158.0–160.0 |
| IAA | 176.0 | 2.0 | 20 | 0.250 | 129.0–131.0 |
| d5-IAA | 181.0 | 2.0 | 20 | 0.250 | 134.0–136.0 |
| JA | 209.0 | 1.0 | 25 | 0.210 | 58.0–60.0 |
| d5-JA | 214.0 | 1.0 | 25 | 0.210 | 61.0–63.0 |
| JA Ile | 322.0 | 2.0 | 30 | 0.250 | 129.0–131.0 |
| OPDA | 291.0 | 2.0 | 18 | 0.250 | 164.0–166.0 |
| SA | 137.0 | 1.0 | 28 | 0.250 | 92.0–94.0 |
| d4-SA | 141.0 | 2.0 | 28 | 0.250 | 96.0–98.0 |
*
Precursor ion isolation window;
**
Collision-induced dissociation energy;
***
Activation Q.