Macherey-Nagel SPE Cartridge, CHROMABond C18 70 ml, 10 g, PP, 10/PAK

Silica gel based octadecyl phase, not endcapped. It is a classical and widely used nonpolar material for hydrophobic interactions with a wide variety of organic compounds. For viscous liquids, larger particles have proven useful. Larger particles used for fast flow (f).