Abstract:

Although competitive immunoassays are currently used more commonly to detect small molecules due to their
low molecular weight and single epitope, noncompetitive immunoassays have better specificity, higher sensitivity and
broader linear ranges. This review describes the latest progress on various noncompetitive immunoassays for small molecules
with emphasis on their principles, characteristics and applications. Furthermore, future development trends are discussed.

Key words: noncompetitive immunoassay, haptens, specific antibody