表 1.
11种待测物及9种同位素内标的质谱参数
| Analyte | ESI |
tR/ min |
Parent ion (m/z) |
Product ions (m/z) |
Collision energies/eV |
Cone voltage/ V |
IS |
|---|---|---|---|---|---|---|---|
| Florfenicol amine (氟苯尼考胺) | + | 0.84 | 248.1 | 230.1*/130.1 | 12/24 | 30 | florfenicol amine-D3 |
| Metronidazole (甲硝唑) | + | 1.49 | 172.1 | 128.1*/82.0 | 14/22 | 30 | metronidazole-D4 |
| Ronidazole (洛硝达唑) | + | 1.55 | 201 | 140.0*/55.1 | 12/20 | 24 | ronidazole-D3 |
| Dimetridazole (地美硝唑) | + | 1.68 | 142.1 | 96.0*/81.0 | 16/22 | 36 | dimetridazole-D3 |
| Thiamphenicol (甲砜霉素) | - | 2.2 | 354 | 185.0*/290.1 | 20/12 | 30 | thiamphenicol-D3 |
| Lincomycin (林可霉素) | + | 2.43 | 407.4 | 126.1*/359.3 | 28/20 | 52 | lincomycin-D3 |
| Florfenicol (氟苯尼考) | - | 2.89 | 356 | 185.0*/336.1 | 18/10 | 36 | florfenicol-D3 |
| Chloramphenicol (氯霉素) | - | 3.71 | 321 | 257.0/152.0* | 10/20 | 30 | chloramphenicol-D5 |
| Erythromycin A (红霉素A) | + | 4.25 | 734.5 | 158.1*/576.5 | 28/20 | 48 | erythromycin A-D6 |
| Erythromycin A enol ether | + | 4.28 | 716.4 | 158.1*/83.0/558.3 | 30/42/20 | 44 | erythromycin A-D6 |
| (红霉素A烯醇醚) | |||||||
| Anhydro erythromycin A (脱氧红霉素A) | + | 4.42 | 716.4 | 158.1*/558.3 | 30/16 | 38 | erythromycin A-D6 |
| Florfenicol amine-D3 (氟苯尼考胺-D3) | + | 0.83 | 251.2 | 233.1*/130.2 | 12/24 | 30 | |
| Metronidazole-D4 (甲硝唑-D4) | + | 1.49 | 176.2 | 128.1*/82.0 | 16/26 | 30 | |
| Ronidazole-D3 (洛硝达唑-D3) | + | 1.55 | 204 | 143.0*/58.0 | 20/12 | 24 | |
| Dimetridazole-D3 (地美硝唑-D3) | + | 1.68 | 145 | 99.0*/83.0 | 22/16 | 36 | |
| Thiamphenicol-D3 (甲砜霉素-D3) | - | 2.2 | 357.1 | 188.1*/293.1 | 20/12 | 40 | |
| Lincomycin-D3 (林可霉素-D3) | + | 2.43 | 410.4 | 129.1*/362.3 | 28/20 | 52 | |
| Florfenicol-D3 (氟苯尼考-D3) | - | 2.89 | 359.1 | 188.1*/339.1 | 18/10 | 36 | |
| Chloramphenicol-D5(氯霉素-D5) | - | 3.71 | 326 | 157.0*/262.0 | 18/12 | 30 | |
| Erythromycin A-D6 (红霉素A-D6) | + | 4.25 | 740.5 | 164.1*/582.5 | 32/20 | 48 |
* Quantitative ion.