The Scepter Claris column has a bioinert surface treatment on the column body and frit for a completely metal-free flowpath. It is ideal for the analysis of compounds that adsorb to either stainless steel or PEEK. The organosilane hybrid particle with phenylbutyl ligand provides unique selectivity compared to a C8 or C18 due to pi-pi interactions between the analyte and stationary phase. The phenyl phase is recommended for the analysis of aromatic compounds, isomers and structural analogs, and can be used in 100% aqueous conditions. USP L11, pore size: 120A, pH range: 1-10, max pressure: 45 MPa/450 bar/6,500 psi, 17% carbon load, fully endcapped. Similar to XBridge Premier BEH Phenyl.