Preparation and evaluation of a polymer-coated zirconia reversed-phase chromatographic support

Mesoporous polybutadiene-modified zirconia for high-temperature packed capillary liquid chromatography: column preparation and temperature programming stability

“…Among the alternative high-performance stationary phases introduced over the years, which mainly are based on transition metal oxides or synthetic polymers, surface modified zirconium oxide (ZrO 2 ) shows interesting chromatographic properties. Uniform, spherical, porous, micro-particulate ZrO 2 with high mechanical strengths, sufficiently high surface areas and reproducible pore geometries have already been prepared for more than one decade [30,31], and is today commercially available with several types of surface modifications. The deposition and cross-linking of polybutadiene (PBD) on the ZrO 2 surface has proven to provide a reversed-phase material with remarkable chemical and thermal stability, e.g.…”

Sol‐gel preparation and properties of Alumina adsorbents for gas separation

“…These materials generally have much lower surface area and were not studied for large-scale separation. Zirconia and titania, used either as supports or directly as adsorbents, were prepared recently by the sol-gel method (Trudinger et al, 1990;Rigney et al, 1989). Zirconia and titania were developed to replace silica as packing materials for high-pressure liquid chromatography (HPLC) (Werber et al, 1990;Blackwell and Carr, 1991).…”

High‐performance liquid chromatography of some basic drugs on a n‐octadecylphosphonic acid modified magnesia‐zirconia stationary phase

“…Thus far, polybutadiene-coated zirconia (PBD-ZrO 2 ) has been the most studied zirconia-based reversed-phase material [20]. Hanggi [21] and Carr [22 -24] et al showed that PBD-ZrO 2 is very useful for the separation of basic drugs and proposed a mixed-mode retention mechanism for such analytes on the adsorbent.…”