From: Chemical assessment of mycotoxin contaminants and veterinary residues in Costa Rican animal feed
Analyte | Molar mass, g/mol | Retention time, min | Target ion, m/z | Fragmentor | Dwell time, ms | Calibration curve equationa or response factor | bLimit of detection, μg kg− 1 (cμg L− 1) | Limit of quantification, μg kg− 1 |
---|---|---|---|---|---|---|---|---|
Mycotoxin contaminants | ||||||||
 Patulin | 154.21 | 24.63 | 154.3 [M+] | 120 | 71 | y = (4.81 × 103 ± 2.69 × 102)x | 0.62 (10.1) | 1.84 |
 Citrinin | 251.10 | 23.48 | 251.0 [M+] | 120 | 56 | y = (3.67 × 103 ± 8.11 × 102)x | 0.34 (1.9) | 1.03 |
 Deoxynivalenol | 296.30 | 8.69 | 297.1 [M + H]+ and 319.0 [M + Na]+ | 120 | 144 | y = (1.61 × 103 ± 4.11 × 102)x | 6.31 (105.2) | 19.12 |
 Aflatoxin B1 | 312.28 | 21.11 | 313.0 [M + H]+ | 140 | 34 | y = (2.62 × 102 ± 3.14 × 101)x | 0.40 (6.7) | 1.21 |
 Nivalenol | 312.32 | 5.14 | 355.1 [M + 2Na]+ | 140 | 143 | y = (1.73 × 102 ± 2.10 × 101)x | 6.42 (107.0) | 19.45 |
 Aflatoxin B2 | 314.30 | 20.48 | 315.0 [M + H]+ | 140 | 34 | y = (1.01 × 102 ± 3.15 × 101)x | 0.14 (2.3) | 0.42 |
 Zearalenone | 318.40 | 24.67 | 319.0 [M + H]+ | 120 | 71 | y = (6.75 × 102 ± 3.41 × 101)x | 0.26 (4.3) | 0.79 |
 β-zearalenol | 320.38 | 22.16 | 321.0 [M + H]+ | 120 | 56 | y = (1.43 × 102 ± 2.55 × 101)x | 0.44 (7.3) | 1.33 |
 α-zearalenol | 320.38 | 23.07 | 321.1 [M + H]+ | 120 | 56 | y = (4.80 × 103 ± 2.01 × 102)x | 0.63 (5.67) | 1.91 |
 Sterigmatocystin | 324.30 | 25.43 | 327.1 [M + 3H]+ | 140 | 95 | y = (7.64 × 102 ± 5.54 × 101)x | 0.60 (10.0) | 1.82 |
 Aflatoxin G1 | 328.30 | 20.48 | 328.9 [M + H]+ | 140 | 34 | y = (5.95 × 102 ± 2.33 × 101)x | 0.27 (4.5) | 0.82 |
 Aflatoxin M1 | 328.27 | 19.13 | 329.0 [M + H]+ | 140 | 34 | y = (4.02 × 103 ± 3.61 × 102)x | 0.005 (0.8) | 0.02 |
 Aflatoxin G2 | 330.30 | 19.87 | 331.0 [M + H]+ | 140 | 34 | y = (1.10 × 102 ± 1.12 × 101)x | 0.20 (3.3) | 0.61 |
 3-acetoxydeoxynivalenol | 338.35 | 18.01 | 339.2 [M + H]+ | 140 | 71 | y = (1.78 × 102 ± 6.65 × 101)x | 0.38 (6.3) | 1.15 |
 15-acetoxydeoxynivalenol | 338.35 | 18.26 | 339.1 [M + H]+ | 120 | 71 | y = (8.77 × 102 ± 2.15 × 101)x | 0.30 (5.0) | 0.91 |
 Fusarenon-X | 354.35 | 15.74 | 355.0 [M + H]+ | 140 | 71 | y = (1.40 × 102 ± 1.17 × 101)x | 0.29 (4.8) | 0.88 |
 Diacetoxyscirpenol | 366.41 | 16.84 | 365.0 [C19H25O7]+˙ - H˙ | 140 | 71 | y = (8.35 × 101 ± 4.31 × 100)x | 0.32 (5.3) | 0.97 |
 Ochratoxin B | 369.37 | 22.71 | 370.0 [M + H]+ | 120 | 56 | y = (1.23 × 102 ± 1.15 × 101)x | 0.21 (3.5) | 0.64 |
 Neosolaniol | 382.41 | 20.79 | 384.2 [M + 2H]+ | 140 | 34 | y = (8.74 × 102 ± 9.14 × 101)x | 0.61 (10.2) | 1.85 |
 Ochratoxin A | 405.40 | 24.35 | 404.0 [M + H]+ | 120 | 71 | y = (1.19 × 102 ± 5.09 × 101)x | 0.16 (2.7) | 0.48 |
 HT-2 toxin | 424.48 | 21.38 | 425.1 [M + H]+ | 140 | 56 | y = (1.06 × 103 ± 2.19 × 102)x | 0.32 (5.3) | 0.97 |
 T-2 toxin | 466.47 | 22.66 | 484.3 [M + NH4]+ | 140 | 71 | y = (8.78 × 102 ± 4.54 × 101)x | 0.96 (16.0) | 2.91 |
 Enniatin B | 639.83 | 29.94 | 640.3 [M + H]+ | 120 | 95 | y = (3.50 × 102 ± 1.07 × 101)x | 1.16 (19.2) | 3.50 |
 Enniatin B1 | 653.86 | 30.98 | 654.3 [M + H]+ | 120 | 95 | y = (2.00 × 103 ± 2.01 × 102)x | 0.11 (1.8) | 0.34 |
 Fumonisin B1 | 721.84 | 18.88 | 723.2 [M + 2H]+ | 100 | 34 | y = (1.19 × 103 ± 1.27 × 102)x | 0.08 (1.3) | 0.24 |
 Fumonisin B2 | 705.84 | 20.09 | 706.2 [M + H]+ | 100 | 34 | y = (3.20 × 102 ± 3.23 × 101)x | 0.43 (7.17) | 1.30 |
Veterinary residues | ||||||||
 Sulfamethazine | 278.33 | 9.18 | 279.0 [M + H]+ | 120 | 146 | 2.61 × 104 ± 6.91 × 103 | 45.45 (50) | 151.52 |
 Spectinomycin | 332.35 | 1.18 | 333.1 [M + H]+ | 140 | 97 | 7.53 × 102 ± 1.91 × 101 | 68.18 (75) | 227.27 |
 Florfenicol | 358.20 | 13.15 | 339.9 [C12H14Cl2NO4S]+˙ - F˙ | 120 | 97 | 1.33 × 102 ± 2.32 × 101 | 45.45 (50) | 151.52 |
 Cloramphenicol | 323.13 | 14.51 | 344.9 [M + Na]+ | 120 | 97 | 3.02 × 102 ± 9.11 × 101 | 46.36 (51) | 154.55 |
 Penicillin G | 334.39 | 17.28 | 354.0 [M + Na]+ and 367.0 [M + 2H2O]+ | 60 | 83 | 1.75 × 103 ± 2.67 × 102 | 97.27 (107) | 324.24 |
 Lincomycin | 406.54 | 7.23 | 407.1 [M + H]+ | 120 | 146 | 4.32 × 103 ± 1.41 × 102 | 81.82 (90) | 272.73 |
 4-epianhydrotetracycline | 426.42 | 14.77 | 427.0 [M + H]+ | 120 | 97 | 1.27 × 103 ± 5.44 × 102 | 100.01 (105) | 303.03 |
 Methacycline | 442.42 | 13.68 | 443.0 [M + H]+ | 120 | 97 | 2.33 × 102 ± 7.83 × 101 | 57.27 (63) | 190.91 |
 Tetracycline | 444.44 | 10.12 | 445.0 [M + H]+ | 120 | 97 | 2.00 × 103 ± 4.23 × 102 | 41.82 (46) | 139.39 |
 Doxycycline | 444.44 | 14.08 | 446.0 [M + 2H]+ | 120 | 97 | 1.17 × 102 ± 5.67 × 101 | 83.64 (92) | 278.79 |
 4-epitetracycline | 444.44 | 10.23 | 447.1 [M + 3H]+ | 140 | 97 | 3.19 × 102 ± 3.23 × 101 | 90.91 (100) | 275.48 |
 Minocycline | 457.48 | 7.14 | 458.1 [M + H]+ | 120 | 146 | 1.25 × 103 ± 1.01 × 102 | 71.21 (83) | 254.38 |
 Demeclocycline | 464.85 | 11.43 | 465.0 [M + H]+ | 120 | 97 | 1.12 × 103 ± 7.34 × 102 | 41.82 (46) | 139.39 |
 Oxytetracycline | 460.44 | 9.46 | 461.0 [M + H]+ | 140 | 97 | 2.27 × 102 ± 6.51 × 101 | 82.73 (91) | 275.76 |
 4-epioxytetracycline | 460.44 | 9.42 | 462.3 [M + 2H]+ | 120 | 146 | 2.94 × 102 ± 2.21 × 101 | 101.02 (113) | 368.63 |
 Chlortetracycline | 478.88 | 13.10 | 479.0 [M + H]+ | 120 | 97 | 1.25 × 103 ± 5.55 × 102 | 92.12 (102) | 301.06 |
 4-epichlortetracycline | 478.88 | 11.57 | 479.1 [M + H]+ | 120 | 97 | 6.51 × 102 ± 3.48 × 101 | 132.73 (146) | 442.42 |
 Virginimycin M1 | 525.60 | 21.94 | 526.1 [M + H]+ | 120 | 83 | 4.46 × 103 ± 2.46 × 102 | 59.09 (65) | 196.97 |
 Monensin A | 670.88 | 24.56 | 693.2 [M + Na]+ | 180 | 83 | 1.13 × 104 ± 1.01 × 103 | 40.91 (45) | 136.36 |
 Erythromycin | 733.94 | 16.83 | 734.3 [M + H]+ | 140 | 83 | 1.16 × 104 ± 1.76 × 103 | 80.93 (89) | 264.56 |
 Narasin | 765.04 | 25.20 | 787.3 [M + Na]+ | 260 | 83 | 1.26 × 103 ± 2.26 × 102 | 24.55 (27) | 81.82 |
 Virginimycin S1 | 823.90 | 23.35 | 824.1 [M + H]+ | 120 | 83 | 3.47 × 103 ± 3.44 × 102 | 59.09 (65) | 196.97 |
 Tylosin | 916.11 | 18.05 | 916.2 [M+] | 140 | 83 | 5.37 × 103 ± 2.88 × 102 | 45.45 (48) | 151.52 |