Patent ID: 7837872
Filing Date: 2010-11-23
Classification: B01J

Abstract:
1. An adsorbent usable in a column for a liquid chromatography, the adsorbent whose surface and its vicinity mainly comprise an apatite represented by the following formula (I): wherein 0.5<a≦1, and 0≦b≦1, the M represents at least one kind of rare earth metal element, and the X represents at least one kind of halogen element, wherein the adsorbent has a particulate form, and the average particle size of the adsorbent is in the range of 40 to 150 μm, and wherein the adsorbent selectively adsorbs a compound having at least two noncovalent electron pairs, and the compound is at least one kind of a sulfur-containing amino acid, a heterocyclic amino acid, and a polypeptide having amino acids as amino acid residues.