Abstract: This application discloses a horizontal gel slab electrophoresis device comprised of a base containing two buffer chambers having a central divider means positioned below a horizontal self. The horizontal shaft is provided with means for cooling. A movable gel tray is positioned on top of the shelf for containing the gel slab and samples to be analyzed. An electrode is positioned in each buffer chamber adjacent to the central divider means. A valve means is positioned in the central divider means for controlling fluid flow between the buffer chambers. In addition, a port is positioned in each buffer chamber for feeding fluids into each of the buffer chambers.The device is useful in the electrophoresis analysis of samples contained in the gel slab within the movable gel tray.

Abstract: An electrophoresis apparatus including a mold for forming a vertically disposed electrophoresis gel slab where the slab is of uniformly increasing thickness from top to bottom and method of fabricating the mold and the gel slab.