1979 年 99 巻 4 号 p. 436-438
An attempt was made to prepare 3H-dihydromorphine as a labeled hapten antigen. Catalytic reduction of morphine with tritium gas, using colloidal palladium as a catalyst, removal of radioactivity contamination by the use of H-H type reaction vessel, and final purification with neutral activated alumina afforded a product with specific radioactivity of 97.47 mCi/mmol.