Table 2.
The physicochemical properties and MS/MS conditions of 17 SAs.
| Abbreviation | Full Name | Molecular Weight | Log KOW a | pKa b | Use | Retention Time (min) | Precursor Ion (m/z) | Product Ion (m/z) |
Cone Voltage (V) | Collision Energy (eV) |
|---|---|---|---|---|---|---|---|---|---|---|
| SG | sulfaguanidine | 214.24 | NA | NA | human | 1.03 | 215 | 108, 156 * | 34 | 20, 15 |
| SG-D4 | 218.27 | 1.03 | 219 | 160 * | 34 | 15 | ||||
| SP | sulfapyridine | 249.29 | 0.35 | 2.90, 8.54 | human and veterinary | 3.12 | 250 | 156 *, 184 | 28 | 15, 16 |
| SP-13C6 | 255.24 | 3.12 | 256 | 162 * | 28 | 16 | ||||
| SD | sulfadiazine | 250.28 | −0.09 | 2.00, 6.48 | human and veterinary | 2.30 | 251 | 92, 156 * | 23 | 27, 15 |
| SD-13C6 | 256.24 | 2.30 | 257 | 162 * | 23 | 15 | ||||
| ST | sulfathiazole | 255.32 | 0.05 | 2.20, 7.24 | human and veterinary | 2.81 | 256 | 92, 156 * | 26 | 25, 15 |
| ST-D4 | 259.34 | 2.76 | 260 | 160 * | 26 | 15 | ||||
| SM1 | sulfamerazine | 264.30 | 0.14 | 2.06, 6.90 | human and veterinary | 3.51 | 265 | 92, 156 * | 24 | 25, 15 |
| SM1-13C6 | 270.26 | 3.51 | 271 | 162 * | 24 | 15 | ||||
| SML | sulfamethizole | 270.33 | 0.54 | 1.86, 5.29 | veterinary | 5.42 | 271 | 92, 156 * | 19 | 30, 15 |
| SML-13C6 | 276.29 | 5.42 | 277 | 162 * | 19 | 15 | ||||
| SMZ | sulfamethoxazole | 253.28 | 0.89 | 1.85, 5.60 | human and veterinary | 9.28 | 254 | 92, 156 * | 27 | 26, 16 |
| SMZ-13C6 | 259.23 | 9.27 | 260 | 162 * | 27 | 16 | ||||
| SIZ | sulfisoxazole | 267.30 | 1.01 | 1.66, 4.71 | human and veterinary | 10.19 | 268 | 92, 156 * | 22 | 28, 13 |
| SIZ-13C6 | 273.26 | 10.19 | 274 | 162 * | 22 | 13 | ||||
| SIM | sulfisomidine | 278.33 | NA | NA | human | 1.96 | 279 | 156 *, 186 | 30 | 18, 25 |
| SIM-D4 | 282.31 | 1.96 | 283 | 160 * | 30 | 18 | ||||
| SM2 | sulfamethazine | 278.33 | 0.89 | 2.65, 7.65 | human and veterinary | 5.19 | 279.1 | 92, 186 * | 30 | 28, 16 |
| SM2-D4 | 282.35 | 5.11 | 283.1 | 186 * | 30 | 16 | ||||
| SMM | sulfamonomethoxine | 280.30 | 0.70 | 1.98, 5.96 | human and veterinary | 7.73 | 281 | 92 *, 156 | 28 | 31, 22 |
| SMM-D4 | 284.33 | 7.63 | 285 | 96 * | 28 | 22 | ||||
| SMP | sulfamethoxypyridazine | 280.30 | 0.32 | 2.09, 6.95 | human and veterinary | 5.80 | 281 | 156 *, 215 | 34 | 20, 15 |
| SMP-D3 | 283.32 | 5.69 | 284 | 156 * | 34 | 20 | ||||
| SM | sulfameter | 280.30 | 0.41 | 1.87, 6.50 | human and veterinary | 5.24 | 281 | 156 *, 215 | 32 | 20, 18 |
| SM-D4 | 284.33 | 5.16 | 285 | 160 * | 32 | 20 | ||||
| SDZ | sulfachloropyridazine | 284.72 | 0.31 | 1.87, 5.45 | human and veterinary | 7.80 | 285.1 | 92, 156 * | 22 | 28, 15 |
| SDZ-13C6 | 290.68 | 7.80 | 291.1 | 162 * | 22 | 15 | ||||
| SQ | sulfaquinoxaline | 300.34 | 1.68 | 1.86, 5.56 | veterinary | 11.50 | 301.1 | 92.2, 156.1 * | 26 | 30, 16 |
| SQ-13C6 | 306.29 | 11.50 | 307.1 | 162.1 * | 26 | 16 | ||||
| SDM | sulfadoxine | 310.33 | 0.70 | 1.52, 6.01 | human | 9.50 | 311 | 92, 156 * | 20 | 32, 15 |
| SDM-D3 | 313.35 | 9.42 | 314 | 156 * | 25 | 20 | ||||
| SPM | sulfadimethoxine | 310.33 | 1.63 | 1.87, 5.86 | veterinary | 11.40 | 311.1 | 92, 156 * | 20 | 32, 21 |
| SPM-D6 | 316.37 | 11.33 | 317.1 | 162.1 * | 25 | 20 |
NA: not available; * quantitative ion. a,b The data are from Li et al. [26].