EZ-10 Column and collection tube (blue tube, clear ring, clear collection), Plasmid Prep Column: Bio Basic Inc. (BBI)’s EZ-10 Spin Columns are packed with silica membranes to rapidly purify nucleic acid using a silica-based extraction method. The columns can be used to purify single- or double-stranded DNA or RNA from contaminants such as salts, solvents, enzymes or proteins. Nucleic acids are binded to the silica resins under high chaotropic salt concentrations, salts and impurities are removed