Affinity detection apparatus

DETAILED DESCRIPTION In the immunoassay apparatus disclosed herein, the coated member and well have complimentary shapes so as to define a thin passageway between the member and well along substantially all the well periphery.
The proximity of substantially all of the fluid sample to the coated member greatly reduces the diffusion time required.
Preferred shapes disclosed herein additionally maximize the surface area available for the complexing interaction, thereby further minimizing process time.
These and other features of the invention are more particularly shown in description of the preferred embodiment of which the following figures form a part.