The Shim-pack GIST-HP PFPP MF is a metal-free version of the GIST PFPP column. Its strong retention is ideal for the analysis of highly polar basic compounds. Stable in high aqueous mobile phases, and suitable for LCMS methods. Fully endcapped with a carbon load of 10%, pore size 100A, surface area of 350 m2/g, and a pH range of 2.0 - 7.5. USP L43