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Chemical Permeation Guide What is permeation? Permeation is the process by which a potentially hazardous chemical moves through a material on a molecular level. Molecules of chemical adsorb onto the outer surface of the material. They then enter a...

33 LC Colum n Selection – C18 Reversed-Phase M aterials www.hichrom.co.uk • sales@hichrom.co.uk • Tel: +44 (0) 118 930 3660 Hichrom Lim ited C18 Reversed-Phase Materials SPECIFICATIONS OF C18 BONDED RP MATERIALS Octadecyl (ODS) or C18 bonded phase...