A chemiluminescent enzyme immunoassay based on magnetic beads was developed for quantitative determination of chloramphenicol(CAP) residues in pork samples. Sample, anti-chloramphenicol antibody, and magnetic beads coated with goat anti-mouse antibody were mixed on the microwell plate. After reacting for a certain period of time, CAP-horseradish peroxidase(HRP) was added and incubated. Then chemiluminescence substrate solution was added after washing the magnetic beads three times. Ten minutes later, the re...