| 摘要 |
A spherical packing for liquid chromatography is described which comprises spherical particles made of at least one material selected from the group consisting of Ca10(PO4)6(OH)2, Ca3(PO4)2, Ca 2P2O7, Ca(PO3)2, Ca10(PO4)6F2 and Ca10(PO4)6Cl2 , the said packing having a solid structure with a porosity of no more than 5%. <IMAGE> |
