Table 2.
Matrix correction curve, correlation coefficient, detection limit and quantitative limit of 16 mycotoxins under different ion modes.
| Mycotoxin | Full Name | Abbreviationa | Molecular formula | Molecular weight | Ionization Mode | Correction curve | R2 | LOD (μg/kg) | LOQ (μg/kg) | Matrix Effect (%) |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Ochratoxin A | OTA | C20H18ClNO6 | 403.81 | ESI + | Y = 0.83X+0.201 | 0.9969 | 0.5 | 1.6 | 95 |
| 2 | T-2 toxin | T-2 | C24H34O9 | 466.53 | ESI + | Y = 1.26X-0.153 | 0.9993 | 2.0 | 6.7 | 92 |
| 3 | HT-2 toxin | HT-2 | C22H32O8 | 424.48 | ESI + | Y = 0.165X+0.0312 | 0.9967 | 1.5 | 5.0 | 93 |
| 4 | Fumonisin B1 | FB1 | C34H59NO15 | 721.83 | ESI + | Y = 0.0342X+0.105 | 0.9978 | 3.0 | 10 | 84 |
| 5 | Fumonisin B2 | FB2 | C34H59NO14 | 705.83 | ESI + | Y = 0.144X+0.0742 | 0.9979 | 3.0 | 10 | 85 |
| 6 | Fumonisin B3 | FB3 | C34H59NO14 | 705.83 | ESI + | Y = 0.112X+0.0351 | 0.9974 | 6.0 | 20 | 84 |
| 7 | Aflatoxin B1 | AFB1 | C17H12O6 | 312.27 | ESI + | Y = 2.64X-0.504 | 0.9971 | 0.1 | 0.33 | 88 |
| 8 | Aflatoxin B2 | AFB2 | C17H14O6 | 314.29 | ESI + | Y = 2.37X-0.641 | 0.9989 | 0.1 | 0.33 | 87 |
| 9 | Aflatoxin G1 | AFG1 | C17H12O7 | 328.27 | ESI + | Y = 1.47X-0.454 | 0.9978 | 0.2 | 0.67 | 86 |
| 10 | Aflatoxin G2 | AFG2 | C17H14O7 | 330.29 | ESI + | Y = 3.51X-0.306 | 0.9964 | 1.0 | 3.3 | 88 |
| 11 | Sterigmatocystin | ST | C18H12O6 | 324.28 | ESI + | Y = 0.0479X+0.0114 | 0.9998 | 5.0 | 16 | 90 |
| 12 | Zearalenone | ZEN | C18H22O5 | 318.36 | ESI - | Y = 0.0211X+0.0381 | 0.9991 | 5.0 | 16 | 94 |
| 13 | Nivalenol | NIV | C15H20O7 | 312.32 | ESI - | Y = 0.0309X-0.0102 | 0.9974 | 6.0 | 20 | 107 |
| 14 | Deoxynivalenol | DON | C15H20O6 | 296.32 | ESI - | Y = 0.0319X-0.0269 | 0.9971 | 5.0 | 16 | 89 |
| 15 | 3-acetyl deoxynivalenol | 3-Ac-DON | C17H22O6 | 322.35 | ESI - | Y = 43.3X+20.9 | 0.9965 | 3.0 | 10 | 92 |
| 16 | 15-acetyl deoxynivalenol | 15-Ac-DON | C17H22O7 | 338.35 | ESI - | Y = 79.1X+138 | 0.9989 | 3.0 | 10 | 91 |
aAbbreviations: OTA: Ochratoxin A; T-2: T-2 toxin; HT-2: HT-2 toxin; FB1: Fumonisin B1; FB2: Fumonisin B2; FB3: Fumonisin B3; AFB1: Aflatoxin B1; AFB2: Aflatoxin B2; AFG1: Aflatoxin G1; AFG2: Aflatoxin G2; ST: Sterigmatocystin; ZEN: Zearalenone; NIV: Nivalenol; DON: Deoxynivalenol; 3-Ac-DON: 3-acetyl deoxynivalenol; 15-Ac-DON: 15-acetyl deoxynivalenol.