Shim-pack Scepter columns consist of an organosilane hybrid particle for excellent stability and performance. The C8 phase is a general-purpose column, less retentive than a C18, and suitable for a wide variety of applications and mobile phase conditions up to pH 12. USP L7, pore size: 120A, pH range: 1-12, max pressure: 100 MPa/1000 bar/14,500 psi, carbon load: 17%, fully endcapped. A guard column is recommended to prolong the analytical column lifetime. Similar to Acquity BEH C8.