| abstract |
In an affinity detection apparatus wherein the specific recognition of a first chemical for a second chemical is used to identify the presence of either, and being of the type normally including a receptical tray having at least one well sized to hold both an insertable member and a solution containing the first of said chemicals, and n An insertable member coated with the second chemical, the improvement comprising: n The coated member and well being complimentary shaped so as to define a first thin passageway between the member and well along substantially all the well periphery. |