Figure 3.
Vacuum chuck and reaction plate. The plate is placed between the upper and lower parts of the vacuum chuck and bolted together. A gasket in the lower half of the chuck mates with the bottom of the plate to ensure a good seal. Reagents are injected in the top of the wells and drained out the bottom via a small hole when a vacuum is applied to the drain line. Surface tension prevents the reagents from draining before the vacuum is turned on.
