The development of a flow-injection fluoroimmunoassay for sulfamethazine

Sulfonamide antibiotics have a broad spectrum of antibacterial activity and are frequently incorporated in feeds as a practical method for the prevention or treatment of a variety of so-called "confinement diseases" in animals, mainly pigs. They are also used at sub-therapeutic levels as growth promoters. Sulfamethazine has historically been the drug of choice for farmers because of its low cost and proven efficacy. However, there are concerns because of the possible presence of residues of the drug in meat. [Continues.]