Sepax HPLC Guard Cartridge, without Holder, Polar-Imidazole, 120 Å, 5 μm, 4 x 10 mm

Synthesized with polymeric chemistry, Polar-Imidazole phase is bonded with imidazole functional groups. With a polar and N-containing ring structure, Polar-Pyridine phase is a weak base and adequate for many applications, such as pharmaceuticals, peptides, sugars, and nucleotides.