Nuclear Chemistry Division, Nuclear Science and Engineering Center, Japan Atomic Energy Agency



Our Mission
 Accurate analyses of radioactive materials are key technologies supporting the use of nuclear energy. For example, in the field of "back-end", determination of radioactive nuclides in the waste is indispensable for safety disposal. There is, however, no way to analyze for some of them yet. For speed-up and labor-saving, improvement of analytical techniques is also desired.
 We investigate the chemical reactions of actinides and fission products in solution to understand their chemical properties. Based on these fundamental knowledge, we construct the novel chemical analysis procedures with pretreatment such as dissolution, separation, concentration, etc.


Achievements (2017.10.24 Update)
■2017

(Publications)
1. T Yomogida, "Non-contact and selective Pd separation based on laser-induced photoreduction for determination of 107Pd by ICP-MS; The Relation between separation conditions and Pd recovery ", Bunseki Kagaku, 66(9), 647-652(2017).
2. S Asai, "Preparation of solid phase extraction cartridges for trace analysis of radionulides", Biomedical Research on Trace Elements, 28(1), 1-10(2017).
3. T Horita,"Preparation of Sr adsorptive fiber by impregnating with crown ether derivative for 90Sr measurement", Bunseki Kagaku, 66(3), 189-193(2017).
4. K Ouchi, "Deposition of uranium oxide following the reduction in weak acid solution using Electrochemical Quartz Crystal Microbalance (EQCM)", ECS Transaction, 75(27), 51-57(2017).


(Presentations)
1. T Yomogida, "Development of Pd separation technique based on photoreduction and prezipitation; The Relationship between ethanol concentration and Pd recovery", The 66th Annual meeting of JSAC, Tokyo
2. S Asai, "Direct measurement of 107Pd in Pd metal recovered from spent nuclear fuel with laser ablation ICP-MS", RSC Tokyo International Conference 2017, Chiba
3. S Asai, "Recovery and determination of Pd in nuclear fuel used for electricity generation", The 66th Annual meeting of JSAC, Tokyo
4. T Horita, 「Direct beta-ray measurement of 90Sr adsorbed on fiber surface; Preparation of 18-crown 6-ether derivative-impregnated Sr adsorption fiber based on the radiation-induced graft polymerization", 2017 Fall Meeting of AESJ, Sapporo
5. S Asai, "Determination of 107Pd in Pd recovered from spent nuclear fuel solution by laser induced photoreduction", 2017 Annual Meeting of AESJ, Hiratsuka
6. K Ouchi, "The Relationship between reduction and deposition of uranium", The 97th spring annual meeting of CSJ, Yokohama
7. K Ouchi, "The Behavior of deposition following the valence change of uranium in weak acid solution", ACTINDES2017, Sendai


■2016

(Publications)
1. S Asai, "Determination of 107Pd in Pd Precipitate Prepared by Laser-Induced Photoreduction for Inductively Coupled Plasma Mass Spectrometry", Anal. Chem., 88, 12227-12233 (2016)
2. S Asai, "Preparation of microvolume anion-exchange cartridge for inductively coupled plasma mass spectrometry-based determination of 237Np content in spent nuclear fuel", Anal. Chem., 88(6), 3149-3155(2016)


(Presentations)
1. S Asai, "Determination of Zr and Mo isotopes in spent nuclear fuel solution by isotope dilution inductively coupled plasma mass spectrometry for validation of calculated values", 9th International Conference on Nuclear and Radiochemistry (NRC-9), Helsinki, Finland.
2. K Ouchi, "Deposition of uranium oxide following the reduction in weak acid solution using Electrochemical Quartz Crystal Microbalance (EQCM)", PACIFIC RIM MEETING 2016 (PRiME 2016), Honolulu, USA.
3. Y Kitatsuji, "Electrode reduction of actinyl ions followed by deposition in weak acid solution", Plutonium Futures - The Science 2016, Baden-Baden, Germany.
4. T Horita, "Preparation of crown ether derivative-impregnated fiber based on the radiation-induced emulsion graft polymerization for rapid analysis, The 65th Annual meeting of JSAC, Sapporo
5. S Asai, "Mass spectrometry of radionuclides and its sample preparation", The 65th Annual meeting of JSAC, Sapporo
6. Y Kitatsuji, "Catalytic effect of metal colloid on uranium(V) reduction", The 60th debate of JNRS, Nigata
7. T Horita, "Preparation of 18-crown-6-ether derivative-impregnated fiber based on the radiation-induced graft polymerization", The 59th debate of Radiation chemistry , Takasaki
8. K Ouchi, "The chemical state change of electrodeposited U(IV)", The 63rd Annual meeting of the polarographic society of japan, Miyakojima


Group Members
Group LeaderYoshihiro Kitatsuji
Principal ResearcherShiho Asai
Assistant Principal EngineerYukiko Hanzawa
ChiefJun Inagawa
 Takumi Yomogida
Kazuki Ouchi
Takuma Horita

Kumiko Nogami




2-4 shirakata, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
Research Group for Analytical Chemistry, Nuclear Chemistry Division, Nuclear Science and Engineering Center
Japan Atomic Energy Agency(JAEA)

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