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 high density C18 ligand provides increased retention and improved steric selectivity for isomers and structural analogs compared to traditional C18 phases, and is compatible with mobile phases up to pH 12. Bioinert coating eliminates adsorption and reduces tailing for compounds that have strong interactions with stainless steel or PEEK surfaces. USP L1, pore size: 80A, pH range: 1-12, max pressure: 100 MPa/1000 bar/14,500 psi, carbon load: 25%, fully endcapped. Similar to Acquity Premier BEH C18.