Table 2.
MS/MS conditions for the confirmation of the different C-CTXs analogues identified in an amberjack (S. fasciata) sample.
| Compound | Precursor Ion (Q1) | Product Ion (Q3) | CE (eV) |
|---|---|---|---|
| C-CTX-1157 | [M+Na]+ m/z 1179.6 | [M+Na]+ m/z 1179.6 | 40 |
| [M+H-H2O]+ m/z 1139.6 | [M+H-2H2O]+ m/z 1121.6 | 15 | |
| [M+H-H2O]+ m/z 1139.6 | [M+H-3H2O]+ m/z 1103.6 | 30 | |
| [M+H-H2O]+ m/z 1139.6 | [M+H-4H2O]+ m/z 1085.6 | 30 | |
| [M+H-H2O]+ m/z 1139.6 | m/z 191.1 | 41 | |
| [M+H-H2O]+ m/z 1139.6 | m/z 108.9 | 52 | |
| C-CTX1 and isomers | [M+H-H2O]+ m/z 1123.6 | [M+H-2H2O]+ m/z 1105.6 | 25 |
| [M+H-H2O]+ m/z 1123.6 | [M+H-3H2O]+ m/z 1087.6 | 29 | |
| [M+H-H2O]+ m/z 1123.6 | [M+H-4H2O]+ m/z 1069.6 | 37 | |
| [M+H-H2O]+ m/z 1123.6 | m/z 191.1 | 41 | |
| [M+H-H2O]+ m/z 1123.6 | m/z 108.9 | 52 | |
| C-CTX-1127 | [M+Na]+ m/z 1149.6 | [M+Na]+ m/z 1149.6 | 40 |
| [M+H]+ m/z 1127.6 | [M+H-H2O]+ m/z 1109.6 | 30 | |
| [M+H]+ m/z 1127.6 | [M+H-2H2O]+ m/z 1091.6 | 32 | |
| [M+H]+ m/z 1127.6 | [M+H-3H2O]+ m/z 1073.6 | 37 | |
| [M+H]+ m/z 1127.6 | [M+H-4H2O]+ m/z 1055.6 | 40 |