antibody excess

an·ti·bod·y ex·cess

in a precipitation test, the presence of antibody in an amount greater than that required to combine with all of the antigen present. See: prozone.

an·ti·bod·y ex·cess

(an'ti-bod-ē eks'es)
In a precipitation test, the presence of antibody in an amount greater than that required to combine with all of the antigen present.
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References in periodicals archive ?
The zones of antibody excess ("prozone") or antigen excess ("postzone") will yield false negative test results because they result in faulty formation of the lattice needed to trap the charcoal particles.
The kinetics could be further improved by increasing the antibody excess, although the effect on background signal and assay sensitivity should also be taken into consideration.