_-agonist (beta-agonist) ELISA Kit

From Assay Genie, the β-agonist competitive ELISA is calibrated against clenbuterol equivalents, with a working detection range of 0.15 to 10 ng/mL and a reported sensitivity near 0.1 ng/mL. Only 50 μL of clarified extract is loaded per well, and the absorbance read at the kit's reference wavelength yields values that researchers convert to ppb in tissue or μg/L in urine using the included calibrator curve.

The antibody cross-reacts with ractopamine, salbutamol, brombuterol, mabuterol, and tulobuterol at varying percentages, so laboratories routinely confirm positives by LC-MS/MS before regulatory reporting. Reconstituted conjugate and unused strips should be kept refrigerated and protected from light, and the foil pouch resealed with desiccant to preserve shelf life across the full microplate.