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  • 1 Tokyo Metropolitan University Department of Chemistry 192-03 Hachioji, Tokyo Japan
  • | 2 Tokyo Metropolitan Research Laboratory of PublicHealth 160 Shinjuku, Tokyo Japan
  • | 3 Tokyo Metropolitan Isotope Research Center 158 Setagaya, Tokyo Japan
  • | 4 Rikkyo University Institute of Atomic Energy 240-01 Yokosuka, Kanagawa Japan
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Advantages and uniqueness of radiochemical techniques in fullerene studies are pointed out. Some experimental data are presented on metallofullerenes production yields, HPLC elution behaviors of Y, La, Gd containing fullerenes, encapsulation of a new metal in the carbon cage, stability of the carbon cage against recoil energy, and the distribution of metallofullerenes among various organs of rats.