The porous graphite quality carbon granular material and uses that the support material null for the chromatography

摘要

PURPOSE:To obtain a suitable supporting body for high speed liquid chromatography having nonpolar and stable chemical properties and high compressive strength by providing a granular graphitic carbon material having respectively specified grain size, specific surface area, porosity, and interlamellar spacing. CONSTITUTION:A powdered carbonaceous material having an average grain size of 1-1000mum, preferably 5-100mum, a specific surface area of =10m2/g, preferably 50-400m2/g, a porosity of 5-60%, preferably 20-50%, and an average interlamellar spacing (d002) of carbon determined by an X-ray analytic method of 3.35-3.42Angstrom , preferably 3.35-3.40Angstrom , is formed into a granular porous graphitic carbon material useful as a supporting material for chromatography. This granular material has superior mechanical strength, particularly =500kg/cm2 compressive strength, and, by using this material as a supporting material for high speed liquid chromatography in particular, highly efficient analysis is carried out.