Used for RIA techniques including scintillation counting and ELISA techniques. The rigid polystyrene frame has 12 polypropylene carriers, each holding an 8-well strip made of polystyrene. C-bottom wells are detachable and have a working volume of 0.3 ml. The frame is keyed for lid orientation with alphanumeric coordinates molded into the frame. Strips have one-way fit. Available in MaxiSorp® and PolySorp® surface treatments, compatible with Nunc Immuno Plates and Modules.