Shim-pack GIS C18, 10um, 20x50. Widely used octadecyl bonded silica gel enables the Shim-pack GIS C18 to have strong hydrophobic interaction and low absorption of ionic compounds. In addition, highly uniform particles ensure stable mobile phase delivery and outstanding low pressure. Shim-pack GIS C18 is ideal for preparative separations. Higher surface area silica and strong retentivity provide high preparative loading capacity without sacrificing peak shape. Bonded Phase: Octadecyl Groups, Particle Size: 2 ?m, 3 ?m, 4 ?m, 5 ?m, 10 ?m, Pore Size: 10 nm, Surface Area: 450 m2/g, Carbon Loading: 15%, End Cap: Complete, pH Range: 2 to 7.5