Shim-pack Scepter columns consist of an organosilane hybrid particle for excellent stability and performance and reliable scaleup from a Scepter PFPP-120 analytical column. The pentafluorophenyl ligand provides alternate selectivity to a C8 or C18, and is recommended for the analysis of aromatic and positively charged (especially N-containing) compounds. The PFPP phase can be used in reversed-phase mode with 100% aqueous conditions, or in HILIC mode for increased LCMS sensitivity. USP L43, pore size: 120A, pH range: 1-8, max pressure: 45 MPa/450 bar/6,500 psi, 15% carbon load, non-endcapped. Method development on an analytical Scepter PFPP-120 column is highly recommended before purchasing a prep column. Prep columns cannot be returned or exchanged once used. Use with prep guard cartridges 227-31157-03 and holder 227-31171-03 to prolong the life of the column. Similar to XSelect CSH Fluoro-Phenyl.