Antibiotic Biochemical Filter Marker/Ladder Sera/Media	home > Products > Biochemical   6X Histidine Protein Elution Buffer Cat. No. Size Price Description HAA11-50 50ml   HAA11-100 100ml   HAA11-250 250ml     Description Elution Buffer consists of 50 mM Phosphate Buffer, 300 mM NaCl, 500 mM Imidazole Designed for use with Goldbio Nickel and Cobalt Agarose resins and Ni/Cu/Co Resin Wash Buffer but can be used with most standard His-Tag purification resins and washes.