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Oral presentation

Stability of $$^{186}$$Re- and $$^{188}$$Re-DMSAs and removal of impurity in the product

Komoto, Kazuki*; Nogawa, Norio*; Sato, Jun*; Makide, Yoshihiro*; Morikawa, Naotake*; Hashimoto, Kazuyuki; Sorita, Takami

no journal, , 

Complex compound of $$^{186}$$Re and $$^{188}$$Re with meso-2,3-dimercaptosuccinic acid (DMSA) is expected to be effective against cancerous disease. This compound is synthesized with high radiochemical yield by use of SnCl$$_{2}$$ as reducing reagent. However, the product contains a large amount of SnCl$$_{2}$$ which is harmful to human body. The removal of tin impurity was tested with cation exchange resin. $$^{186}$$Re-DMSA complex was also obtained with high radiochemical yield by use of other harmless reducing agents (L-ascorbic acid, Na$$_{2}$$SO$$_{3}$$, H$$_{3}$$PO$$_{3}$$). Synthesized $$^{186}$$Re-DMSA by use of SnCl$$_{2}$$ was stable in sodium acetate buffer for 5 hours, while survival amount of $$^{186}$$Re-DMSA synthesized by other reducing agents decreased in a short time.

Oral presentation

Maintenance management of valves in low level radioactive effluent treatment process at TRP

Komoto, Norio; Sasaki, Hirofumi; Kawata, Tsuyoshi; Taki, Kiyotaka; Kinoshita, Shigemi*

no journal, , 

no abstracts in English

Oral presentation

Performance test of iodine absorbent using off-gas from low level radioactive effluent treatment process at Tokai Reprocessing Facility

Hashimoto, Kazuichi; Kawata, Tsuyoshi; Nagayama, Mineo; Komoto, Norio; Shoji, Kenji; Choki, Toshiyuki; Sasaki, Hirofumi; Kashimura, Takao; Kinoshita, Shigemi*

no journal, , 

no abstracts in English

Oral presentation

Determination of trace elements in low-level radioactive liquid waste of reprocessing plant using chelating disk separation/ICP-AES

Okano, Masanori; Goto, Yuichi; Jitsukata, Shu*; Nemoto, Hirokazu*; Takano, Masato; Komoto, Norio; Kuno, Takehiko; Yamada, Keiji

no journal, , 

no abstracts in English

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