摘要:
The present invention is related to a conjugate of a hapten to a natural or synthetic null-lactam derivative, comprising at least a side chain, wherein the side chain of the null-lactam derivative is at least partially constitutive of the conjugating arm. The invention relates also to a method for the immunoassay of the hapten involving said null-lactam derivativenullhapten conjugate as an inhibitor for a null-lactamase or a penicillin detector capable of specific recognition of the null-lactamic moiety of said conjugate.