Flow injection chemiluminescent competitive immunoassay for the β-adrenergic agonist salbutamol using carboxylic resin beads and enzymatic amplification

In this work, we designed a simple, rapid and sensitive CL immunosensor for the determination of salbutamol coupled with the competitive immunoreaction and enzymatic amplification. The carboxylic resin beads were used to immobilize more coating-antigen. This immunosensing strategy would be of great value in other food additive residues detection.