CALCIUM PHOSPHATE POROUS SPHERICAL PARTICLE AND CALCIUM PHOSPHATE POROUS MULTILAYER SPHERICAL PARTICLE SUBSTITUTED PARTLY BY METAL ION OR CARRYING METAL ION ON SURFACE

摘要

PPROBLEM TO BE SOLVED: To provide new functional particles useful as a material for chromatography which allow separating trace and exact amounts of chemical substances. PSOLUTION: The particle is a calcium phosphate porous spherical particle of 0.1 to 100 μm in particle diameter which carries metal ions or is substituted by metal ions. PCOPYRIGHT: (C)2004,JPO