Table 2.
Precursor and product ions, MSMS conditions, and LC retention time (RT) of all MSMs and ISTD
| Abbreviation | Precursor ion (m/z) | Cone voltage (V) | Product ions (m/z) (1st, 2nd) | Collision energy (V) (1st, 2nd) | RT (min) |
|---|---|---|---|---|---|
| AFB1 | 313.1 [M+H]+ | 62 | 241.1, 284.9 | 40, 24 | 5.4 |
| AFB2 | 315.2 [M+H]+ | 58 | 287.1, 259.1 | 28, 30 | 5.3 |
| AFG1 | 329.1 [M+H]+ | 58 | 243.0, 311.0 | 28, 22 | 5.2 |
| AFG2 | 331.1 [M+H]+ | 60 | 313.0, 245.0 | 26, 32 | 5.0 |
| ALT | 257.0 [M-H]− | 56 | 212.3, 189.0 | 24, 24 | 5.9 |
| AME | 273.2 [M+NH4]+ | 54 | 127.9, 115.0 | 50, 54 | 6.8 |
| ASPG | 445.5 [M+H]+ | 50 | 367.2, 349.2 | 18, 18 | 5.9 |
| CIT | 251.2 [M+H]+ | 28 | 233.0, 191.0 | 18, 26 | 5.6 |
| CITRO | 285.1 [M-H]− | 62 | 224.0, 241.0 | 34, 26 | 6.2 |
| CTGA | 529.5 [M+H]+ | 32 | 130.0, 511.3 | 38, 10 | 6.6 |
| CYCLO | 261.2 [M+H]+ | 36 | 136.0, 154.1 | 18, 28 | 4.3 |
| DAS | 384.3 [M+NH4]+ | 24 | 307.2, 105.0 | 12, 32 | 5.6 |
| DOM | 297.2 [M+H]+ | 28 | 249.1, 203.1 | 10, 16 | 4.4 |
| DON | 281.2 [M+H]+ | 26 | 109, 233.1 | 22, 10 | 4.7 |
| EMOD | 269.0 [M-H]− | 66 | 225.0, 240.9 | 28, 28 | 7.5 |
| FUB1 | 722.6 [M+H]+ | 62 | 352.3, 704.4 | 38, 32 | 5.8 |
| INTA | 629.7 [M+H]+ | 26 | 349.1, 289.2 | 16, 30 | 8.4 |
| INTB | 587.6 [M+H]+ | 24 | 307.2, 167.0 | 14, 26 | 7.9 |
| NEO | 400.3 [M+NH4]+ | 20 | 305.1, 215.1 | 12, 20 | 4.7 |
| NEOA | 324.3 [M+H]+ | 28 | 156.9, 130.0 | 42, 52 | 5.8 |
| NITP∗ | 117.8 [M-H]− | 20 | 45.9 | 6 | 2.1 |
| NIV | 313.2 [M+H]+ | 26 | 205.1, 125.0 | 12, 12 | 4.0 |
| OTA | 404.3 [M+H]+ | 32 | 239.0, 358.1 | 22, 14 | 6.3 |
| ROQC | 390.2 [M+H]+ | 16 | 193.0, 322.1 | 30, 22 | 6.3 |
| SKY | 539.3 [M+H]+ | 68 | 521.1, 504.0 | 30, 46 | 7.7 |
| STCH | 386.4 [M+H]+ | 70 | 178.1, 150.1 | 38, 46 | 7.0 |
| STEG | 325.2 [M+H]+ | 50 | 310.1, 281.0 | 22, 54 | 6.8 |
| T2 | 484.4 [M+NH4]+ | 26 | 305.1, 185.1 | 14, 20 | 6.3 |
| VAL | 1128.7 [M+NH4]+ | 66 | 343.3, 1083.7 | 71, 43 | 9.7 |
| VERA | 520.4 [M+NH4]+ | 24 | 249.1, 457.2 | 18, 14 | 6.2 |
| VERO | 267.1 [M+H]+ | 16 | 249.1, 231.1 | 6, 12 | 4.9 |
| ZEA | 317.1 [M-H]− | 52 | 130.9, 174.9 | 30, 26 | 6.6 |
AFB1, aflatoxin B1; AFB2, aflatoxin B2; AFG1, aflatoxin G1; AFG2, aflatoxin G2; ALT, alternariol; AME, alternariol monomethylether; ASPG, asperglaucide; CIT, citrinin; CITRO, citreorosein; CTGA, chaetoglobosin A; CYCLO, cyclo(L-Pro-L-Tyr); DAS, diacetoxyscirpenol; DOM, deepoxy-deoxynivalenol; DON, deoxynivalenol; EMOD, emodin; FUB1, fumonisin B1; INTA, integracin A; INTB, integracin B; ISTD, internal standard; LC, liquid chromatography; MSMS, tandem mass spectrometry; MSMs, microbial secondary metabolites; NEO, neosolaniol; NEOA, neoechinulin A; NITP, 3-nitropropionic acid; NIV, nivalenol; OTA, ochratoxin A; ROQC, roquefortine C; SKY, skyrin; STCH, stachybotrylactam; STEG, sterigmatocystin; T2, T-2 toxin; VAL, valinomycin; VERA, verrucarin A; VERO, verrucarol; ZEA, zearalenone.
We found only one transition for the MSM.