Corresponding SFC Columns manufactured by GL Sciences Inc. feature supercritical CO2 as mobile phase. It is said suitable for high speed analysis because of lower viscosity than the general HPLC mobile phase and fast diffusion speed is fast in mobile phase. It is exceptional method for preparative and purification purpose because almost mobile phase is volatilized when back to normal pressure. InertSustain and Inertsil series columns are available for SFC analysis. The packing materials are the same as HPLC columns but they are packed in stainless tubes which correspond to SFC. Various packing materials are available, and then utilize for expand the SFC application range.