The HALO Penta-HILIC is ideal for the analysis of polar compounds that have limited or no retention on reversed phase columns such as C8 or C18. It provides alternate selectivity compared to bare silica or diol HILIC columns, with excellent peak shape for basic compounds. USP L95, non-endcapped, pH range 2-9, maximum temperature 60C (40C at pH9), maximum pressure 600 bar/60MPa/9000 psi.