Thermo Fisher Scientific HPLC Guard Column BetaSil Phenyl, 100 Å, 5 μm, 4 x 10 mm , 4 pc/PAK

HPLC guard column BetaSil Phenyl with 4 mm inner diameter, 10 mm length and 5.0 µm particle size. 4 per pack.The BetaSil Phenyl column works with a Thermo Scientific chemistry on 100Å silicon dioxide and has a large surface area with a high proportion of bound phase.