Table 2.
Primary and secondary transition ion pairs for paralytic shellfish toxins (PSTs) analyzed by multiple reaction monitoring in this study, except those that were in low abundance or not detected in algae extracts. Optimized collision energy and declustering potential for each transition ion pair is provided.
| Toxin | Transition Ion Pair (m/z) | Collision Energy (eV) | Declustering Potential (V) |
|---|---|---|---|
| dcSTX | 257 > 222 | 19 | 35 |
| 257 > 239 | 10 | 30 | |
| dcNeo | 273 > 255 | 20 | 35 |
| 273 > 225 | 25 | 35 | |
| STX | 300 > 204 | 20 | 35 |
| GTX3 | 316 > 220 | 20 | 35 |
| dcGTX3 | 353 > 255 | 20 | 35 |
| GTX5 | 380 > 300 | 14 | 20 |
| 300 > 204 | 20 | 35 | |
| C2 | 396 > 298 | 10 | 40 |
| 396 > 316 | 15 | 45 | |
| C1 | 316 > 220 | 20 | 35 |
| 396 > 316 | 15 | 45 | |
| GTX6 | 316 > 220 | 20 | 35 |
| 396 > 316 | 15 | 45 | |
| C4 | 412 > 314 | 10 | 40 |
| 412 > 332 | 15 | 45 | |
| C3 | 412 > 332 | 15 | 45 |
| GC1 | 393 > 320 | 15 | 20 |
| 473 > 393 | 15 | 20 | |
| GC2 | 473 > 375 | 15 | 20 |
| 473 > 455 | 15 | 20 | |
| GC3 | 377 > 204 | 25 | 40 |
| 377 > 359 | 20 | 30 | |
| GC4 | 489 > 409 | 20 | 30 |
| GC5 | 489 > 391 | 20 | 30 |
| 489 > 471 | 15 | 20 | |
| GC6 | 393 > 220 | 20 | 40 |
| 393 > 375 | 15 | 20 |