Hapten assay device and use thereof.

2142186 9429723 PCTABS00168Dispositif for the determination of a hapten or anti-hapten antibody, comprising a solid support and a reagent covalently linked to a ligand to form a conjugate for immobilizing said reagent onto the said solid support, said reagent being recognized by antibodies capable of recognizing the said hapten, characterized in that said ligand is a nucleic acid fragment. Application of this device to the assay of a hapten in a liquid sample by a competition technique.