6 LABORATORY CHEMICAL REAGENT KIT FOR ANALYTICAL USE-NAMELY, A GEL CONTAINED IN A MOLD FOR USE IN ELECTROPHORESIS AND CHROMATOGRAPHY PROCESSES, MOLDS CONTAINING A GEL FOR USE IN ELECTROPHORESIS AND CHROMATOGRAPHY PROCESSES, AND CHEMICALS ADAPTED TO BE MIXED AT TIME OF USE FOR APPLICATION TO ELECTROPHORETICALLY SEPARATED MATERIALS ON A SUPPORT FOR THE QUANTITATIVE DETERMINATION OF THE ELECTROPHORETICALLY SEPARATED MATERIALS THEREON