Sep-Pak Accell Plus CM 12 cc Vac Cartridge, 2 g Sorbent per Cartridge, 37-55 µm Particle Size, 20/pk
Ion-exchange, 2 - 8 pH, Silica, 300Å Pore Size, 370 µeq/gram Ion Exch. Capacity, 5.5 Carbon, Not Water Wettable, Mass Spec Compatible