9 ELECTROPHORESIS EQUIPMENT, NAMELY, ELECTRICAL POWER SUPPLIES; VERTICAL SLAB GEL TESTERS; HORIZONTAL GEL SLICERS; SLAB GEL DRIERS; AGAROSE CELLS; TRANSILLUMINATORS; POLYANALYST ELECTROPHORESIS SYSTEMS COMPRISING VERTICAL TUBE GEL UNIT, ELECTROPHORESIS TUBES AND BUFFER CHAMBER, AND PREPARATIVE ELECTROPHORESIS SYSTEMS COMPRISING GEL TRAY, SPECIMEN APPLICATOR, AND GEL DIVIDER