Antimicrobial compounds such as Quinolones, Ceftiofur, Streptomycin and Tetracyclines may be widely used in milk producing cattle. Due to the potential health risks in humans and increasing number of antibiotic resistant bacteria, global government agencies have set maximum residue levels in milk.
| Assay | LOD (ppb) | Compound | Cross Reactivity % |
|---|---|---|---|
| Quinolones | 1.00 | Norfloxacin* Pefloxacin Enrofloxacin Ciprofloxacin Ofloxacin Pipemidic Acid Fleroxacin Levfloxacin Nadifloxacin Orbifloxacin Danofloxacin Marbofloxacin Oxolinic Acid Difloxacin Pazufloxacin Sarafloxacin Enoxacin | 100.00 84.00 76.00 59.00 57.00 36.00 32.00 32.00 27.00 23.00 20.00 16.00 12.00 8.00 7.00 6.00 54.00 |
| Ceftiofur | 1.50 | Ceftiofur Desfuroyceftiofur | 100.00 92.00 |
| Thiamphenicol | 0.50 | Florfenicol Thiamphenicol | 100.00 53.00 |
| Streptomycin | 2.00 | Streptomycin Dihydrostreptomycin | 100.00 99.00 |
| Tylosin | 2.50 | Tylosin Tilmicosin | 100.00 37.00 |
| Tetracyclines | 1.00 | Tetracyclines 4-epitetracycline Rolitetracycline 4-epioxytetracylcine Oxytetracycline Chlortetracycline Demeclocycline Doxycycline 4-epichlortetracycline Methacycline | 100.00 87.00 67.00 52.00 52.00 51.00 41.00 23.00 20.00 11.00 |