Sachtopore is an inorganic, porous, HPLC stationary phase comprised of titanium dioxide (titania). The particles are spherical, monodisperse and are available in a wide range of well controlled particle and pore sizes. Currently Sachtopore is available in normal and reversed-phase modes: Sachtopore-NP and Sachtopore-RP, respectively. Sachtopore-NP is a bare titania particle whereas Sachtopore-RP is polyethylene coated titania. Both stationary phases are very chemically and thermally stable and offer unique chromatographic selectivity.