
D3004-4 by Zymo Research is a 4 ml ready-to-use solution of 10 mM Tris, pH 8.5, 0.1 mM EDTA—the standard buffer for eluting DNA from silica spin columns, 96-well plates, and magnetic bead systems. The EDTA component stabilizes eluted DNA by chelating DNase-activating cations, and the pH 8.5 formulation is compatible with PCR, ligation, restriction digestion, and Sanger sequencing without dilution.