AccuGel 19:1 is a stabilized, ready-to-use solution of 30% or 40% (w/v) acrylamide : bisacrylamide (19:1). AccuGel 19:1 has zero acrylic acid content, eliminating the fixed charges that cause band streaking. Additionally, oxidation products such as aldehydes have been removed by a selective adsorption process. With AccuGel 19:1, you can trust that your results will be consistent from one electrophoretic run to the next. It is certified RNase and DNase Free.