| 摘要 |
PROBLEM TO BE SOLVED: To obtain an adsorbent for oral administration that has high adsorbability and can adsorb a large amount of toxic substances when it stays in the upper small intestine duct. SOLUTION: The adsorbent for the oral administration, comprising a surface-modified spherical activated carbon wherein an average diameter is 0.01 to 1 mm, a specific surface area determined by a BET method is 700 m<SP>2</SP>/g or more, a volume of pores having a pore diameter of 7.5 to 15,000 nm is from 0.25 mL/g to 1.0 mL/g, a total amount of acidic groups is 0.30 to 1.20 meq/g, and a total amount of basic groups is 0.27 to 0.7 meq/g, is disclosed. COPYRIGHT: (C)2006,JPO&NCIPI
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