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Journal Articles

Safe and rapid development of capillary electrophoresis for ultratrace uranyl ions in radioactive samples by way of fluorescent probe selection for actinide ions from a chemical library

Haraga, Tomoko; Ouchi, Kazuki; Sato, Yoshiyuki; Hoshino, Hitoshi*; Tanana, Rei*; Fujihara, Takashi*; Kurokawa, Hideki*; Shibukawa, Masami*; Ishimori, Kenichiro; Kameo, Yutaka; et al.

Analytica Chimica Acta, 1032, p.188 - 196, 2018/11

 Times Cited Count:6 Percentile:33.4(Chemistry, Analytical)

The development of safe, rapid and highly sensitive analytical methods for radioactive samples, especially actinide (An) ions, represents an important challenge. Here we propose a methodology for selecting appropriate emissive probes for An ions with very low consumption and emission of radioactivity by capillary electrophoresis-laser-induced fluorescence detection (CE-LIF), using a small chemical library of probes with eight different chelating moieties. It was found that the emissive probe, which possesses the tetradentate chelating moiety, was suitable for detecting uranyl ions. The detection limit for the uranyl-probe complex using CE-LIF combined with dynamic ternary complexation and on-capillary concentration techniques was determined to be 0.7 ppt. This method was successfully applied to real radioactive liquid samples collected from nuclear facilities.

Journal Articles

Application of capillary electrophoresis with laser-induced fluorescence detection for the determination of trace neodymium in spent nuclear fuel using complexation with an emissive macrocyclic polyaminocarboxylate probe

Haraga, Tomoko; Saito, Shingo*; Sato, Yoshiyuki; Asai, Shiho; Hanzawa, Yukiko; Hoshino, Hitoshi*; Shibukawa, Masami*; Ishimori, Kenichiro; Takahashi, Kuniaki

Analytical Sciences, 30(7), p.773 - 776, 2014/07

 Times Cited Count:5 Percentile:21.87(Chemistry, Analytical)

A simple and rapid method with low radiation exposure risk was developed for the determination of neodymium in spent nuclear fuel by CE with LIF detection using a fluorescent ligand having a macrocyclic hexadentate polyaminocarboxylate structure. The concentration of Nd(III) in a spent nuclear fuel sample was determined with no interference from various matrix elements, including lanthanides and uranium (at a 200-fold excess), with 92 $$pm$$ 3% recovery. This is due to method's high resolution based on establishing a ternary complex equilibrium during migration in which the hydroxyl ion plays an auxiliary role.

Journal Articles

Preliminary test for reprocessing technology development of tritium breeders

Hoshino, Tsuyoshi; Tsuchiya, Kunihiko; Hayashi, Kimio; Nakamura, Mutsumi*; Terunuma, Hitoshi*; Tatenuma, Katsuyoshi*

Journal of Nuclear Materials, 386-388, p.1107 - 1110, 2009/04

 Times Cited Count:9 Percentile:56.98(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Divertor biasing effects to reduce L/H power threshold in the JFT-2M tokamak

Miura, Yukitoshi; *; *; Hoshino, Katsumichi; *; *; Kasai, Satoshi; Kawakami, Tomohide; Kawashima, Hisato; Maeda, M.*; et al.

Fusion Energy 1996, p.167 - 175, 1997/05

no abstracts in English

Journal Articles

Investigation of causality in the H-L transition on the JFT-2M tokamak

*; *; *; *; *; *; *; Oikawa, Toshihiro; *; *; et al.

Fusion Energy 1996, p.885 - 890, 1997/05

no abstracts in English

Oral presentation

Development of Li resource recycle technology for tritium breeding materials

Terunuma, Hitoshi*; Nakamura, Mutsumi*; Tatenuma, Katsuyoshi*; Tsuchiya, Kunihiko; Hoshino, Tsuyoshi; Hayashi, Kimio

no journal, , 

no abstracts in English

Oral presentation

Capillary electrophoresis with pre- and on-capillary complexation technique for analysis of Eu and Ho in radioactive wastes

Haraga, Tomoko; Katayama, Atsushi; Kameo, Yutaka; Nakashima, Mikio; Hoshino, Hitoshi*

no journal, , 

For the safe disposal of low-level radioactive wastes, it is indispensable to evaluate radioactivity concentration in each waste package. In order to simplify the radiochemical analysis of Eu and Ho in radioactive waste samples, applicability of capillary electrophoresis was examined. After pre-capillary complexation with aromatic polyaminocarboxylate, on-capillary complexation method using various auxiliary reagents was examined. It was found that the addition of iminodiacetic acid to the electrolyte was effective for separation of Eu and Ho from matrix elements, Al, Fe, Ca, Na.

Oral presentation

Analysis of lanthanoids and actinoids in radioactive wastes by capillary electrophoresis

Haraga, Tomoko; Katayama, Atsushi; Kameo, Yutaka; Nakashima, Mikio; Hoshino, Hitoshi*

no journal, , 

no abstracts in English

Oral presentation

Applicability of capillary electrophoresis with pre-and on-capillary complexation technique for analysis of Eu and Ho in radioactive wastes

Haraga, Tomoko; Katayama, Atsushi; Kameo, Yutaka; Nakashima, Mikio; Hoshino, Hitoshi*

no journal, , 

no abstracts in English

Oral presentation

Applicability of capillary electrophoresis with pre-capillary complexation technique for analysis of uranium in radioactive wastes

Haraga, Tomoko; Kameo, Yutaka; Katayama, Atsushi; Nakashima, Mikio; Takahashi, Kuniaki; Hoshino, Hitoshi*

no journal, , 

no abstracts in English

Oral presentation

Capillary electrophoresis for detection of ultratrace uranyl ions in radioactive samples by way of fluorescent probe selection for actinide ions from a chemical library

Haraga, Tomoko; Ouchi, Kazuki; Sato, Yoshiyuki; Hoshino, Hitoshi*; Tanana, Rei*; Fujihara, Takashi*; Kurokawa, Hideki*; Shibukawa, Masami*; Ishimori, Kenichiro; Kameo, Yutaka; et al.

no journal, , 

no abstracts in English

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