Prolactin assay is a two-site sandwich immunoassay using direct
chemiluminometric technology, which uses constant amounts of two antibodies. The first antibody, in the
Lite Reagent, is a polyclonal goat anti-prolactin antibody labeled with acridinium ester. The second
antibody, in the Solid Phase, is a monoclonal mouse anti-prolactin antibody, which is covalently coupled
to paramagnetic particles.