DNA loading dye DNA gel-loading dye (10X) 3.9 mL glycerol 500 ?L 10% (w/v) SDS 200 ?L 0.5 M EDTA 0.025 g bromophenol blue 0.025 g xylene cyanol Bring to 10 mL total volume with H2O. https://cshprotocols.cshlp.org/content/2008/8/pdb.rec11373.full?text_only=true