Search Results - "Takaumi Kimura"

Optical Properties of Trinuclear Citrate Complexes Containing 4f and 5f Block Metals by Aoyagi, Noboru, Palladino, Giuseppe, Nagasaki, Shinya, Kimura, Takaumi

“…The speciation and coordination geometries of M(III)-citrate complexes in aqueous solutions, where M denotes Eu, Tb, Lu, or Cm, are studied using…”
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Propagation of U(V)-reduction in the presence of U(IV) aggregate in a weakly acidic solution by Kitatsuji, Yoshihiro, Otobe, Haruyoshi, Kimura, Takaumi, Kihara, Sorin

“…•Reduction product from UO2+ forms UO2 aggregate in a weakly acidic solution.•The aggregates formed in a bulk solution accelerates disproportionation of…”
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Speciation of Eu3+ bound to humic substances by time-resolved laser fluorescence spectroscopy (TRLFS) and parallel factor analysis (PARAFAC) by Lukman, Steven, Saito, Takumi, Aoyagi, Noboru, Kimura, Takaumi, Nagasaki, Shinya

“…The bioavailability and toxicity of metal ions including radionuclides in the biosphere are greatly influenced by their speciation. Humic substances (HSs) are…”
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Surface speciation of Eu3+ adsorbed on kaolinite by time-resolved laser fluorescence spectroscopy (TRLFS) and parallel factor analysis (PARAFAC) by Ishida, Keisuke, Saito, Takumi, Aoyagi, Noboru, Kimura, Takaumi, Nagaishi, Ryuji, Nagasaki, Shinya, Tanaka, Satoru

“…[Display omitted] ► Three Eu3+ surface complexes with kaolinite were obtained from TRLFS with PARAFAC. ► The intensity profiles of the species explained the…”
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Fission track–secondary ion mass spectrometry as a tool for detecting the isotopic signature of individual uranium containing particles by Esaka, Fumitaka, Lee, Chi-Gyu, Magara, Masaaki, Kimura, Takaumi

“…[Display omitted] ► A fission track technique is combined with secondary ion mass spectrometry. ► Plasma ashing is used to prepare samples for analysis. ► The…”
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Adsorption behavior and radiation effects of a silica-based (Calix(4)+Dodecanol)/SiO2-P adsorbent for selective separation of Cs(I) from high level liquid waste by Ito, Tatsuya, Xu, Yuanlai, Kim, Seong-Yun, Nagaishi, Ryuji, Kimura, Takaumi

“…A macroporous silica-based (Calix[4]+Dodecanol)/SiO 2 -P absorbent for separation of Cs(I) from HNO 3 solution was prepared by impregnating the…”
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Application of Parallel Factor Analysis for Time-Resolved Laser Fluorescence Spectroscopy: Implication for Metal Speciation Study by Saito, Takumi, Sao, Hirokazu, Ishida, Keisuke, Aoyagi, Noboru, Kimura, Takaumi, Nagasaki, Shinya, Tanaka, Satoru

“…Time-resolved laser fluorescence spectroscopy (TRLFS) is an analytical technique capable of discriminating different chemical species of a fluorescent metal…”
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Mutual Separation of Actinides from Middle Lanthanides by the Combination of Two Neutral Donors, N,N,N′,N′-Tetraoctyl-3,6-dioxaoctanediamide and N,N,N′,N′-Tetraethyldiglycolamide by Sasaki, Yuji, Morita, Yasuji, Kitatsuji, Yoshihiro, Kimura, Takaumi

“…The separation of Am and Cm from Sm, Eu, and Gd was examined by the combination of new extractant, DOODA (N,N,N′,N′-tetraoctyl-3,6-dioxaoctanediamide) and…”
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A method for the determination of extraction capacity and its application to N, N, N′, N′-tetraalkylderivatives of diglycolamide-monoamide/n-dodecane media by Sasaki, Yuji, Sugo, Yumi, Suzuki, Shinichi, Kimura, Takaumi

“…The detailed study on the extraction capacity of N, N, N′, N′-tetraalkylderivatives of diglycolamide (DGA) was performed by using the novel analytical method,…”
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Study on radiation effects on (MOTDGA–TOA)/SiO2-P adsorbent for separation of platinum group metals from high-level radioactive waste by Ito, Tatsuya, Nagaishi, Ryuji, Kimura, Takaumi, Kim, Seong-Yun

“…To discuss the applicability of a novel macroporous silica-based (MOTDGA–TOA)/SiO 2 -P adsorbent which was developed to separate platinum group metals (PGMs)…”
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Preparation of Microvolume Anion-Exchange Cartridge for Inductively Coupled Plasma Mass Spectrometry-Based Determination of 237Np Content in Spent Nuclear Fuel by Asai, Shiho, Hanzawa, Yukiko, Konda, Miki, Suzuki, Daisuke, Magara, Masaaki, Kimura, Takaumi, Ishihara, Ryo, Saito, Kyoichi, Yamada, Shinsuke, Hirota, Hideyuki

“…Microvolume anion-exchange porous polymer disk-packed cartridges were prepared for Am/Np separation, which is required prior to the measurement of…”
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Rapid collection of iron hydroxide for determination of Th isotopes in seawater by Okubo, Ayako, Obata, Hajime, Magara, Masaaki, Kimura, Takaumi, Ogawa, Hiroshi

“…•DIAION CR-20 chelating resin has successfully collected iron-hydroxide with Th isotopes.•Ferric ions in the iron hydroxide were bonded to functional groups of…”
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Applications of Time‐Resolved Laser Fluorescence Spectroscopy to the Environmental Biogeochemistry of Actinides by Collins, Richard N., Saito, Takumi, Aoyagi, Noboru, Payne, Timothy E., Kimura, Takaumi, Waite, T. David

“…Time‐resolved laser fluorescence spectroscopy (TRLFS) is a useful means of identifying certain actinide species resulting from various biogeochemical…”
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Adsorption of Eu(III) on a Heterogeneous Surface Studied by Time-Resolved Laser Fluorescence Microscopy (TRLFM) by Ishida, Keisuke, Kimura, Takaumi, Saito, Takumi, Tanaka, Satoru

“…Time-resolved laser fluorescence microscopy (TRLFM) is a useful tool to simultaneously investigate the intensity, location, type, and surrounding chemical…”
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Reduction behavior of neptunium(V) at a gold or platinum electrode during controlled potential electrolysis and procedures for electrochemical preparations of neptunium(IV) and (III) by Kitatsuji, Yoshihiro, Kimura, Takaumi, Kihara, Sorin

“…Unique current–time relations were observed during the controlled potential electrolysis for the reduction of NpO 2 + to Np 4+ or Np 3+ at a gold or platinum…”
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Sorption of Eu3+ on Na-montmorillonite studied by time-resolved laser fluorescence spectroscopy and surface complexation modeling by Sasaki, Takayuki, Ueda, Kenyou, Saito, Takumi, Aoyagi, Noboru, Kobayashi, Taishi, Takagi, Ikuji, Kimura, Takaumi, Tachi, Yukio

“…The influence of pH and concentrations of Eu 3+ and NaNO 3 on the sorption of Eu 3+ to Na-montmorillonite were investigated through batch sorption measurements…”
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Photophysical Property of catena-Bis(thiocyanato)aurate(I) Complexes in Ionic Liquids by Aoyagi, Noboru, Shinha, Yusuke, Ikeda-Ohno, Atsushi, Haga, Yoshinori, Shimojo, Kojiro, Brooks, Neil R, Izuoka, Akira, Naganawa, Hirochika, Kimura, Takaumi, Binnemans, Koen

“…The photochemistry of a gold(I) thiocyanate complex has been investigated to determine the coordination structure in both the solid and liquid states. The…”
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A new method for isotope ratio measurement of uranium in trace amount by thermal ionization mass spectrometry: The continuous heating method by Suzuki, Daisuke, Saito-Kokubu, Yoko, Sakurai, Satoshi, Lee, Chi-Gyu, Magara, Masaaki, Iguchi, Kazunari, Kimura, Takaumi

“…A new method for isotope ratio measurement with thermal ionization mass spectrometry (TIMS), “continuous heating method”, was developed in order to determine…”
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Spectroscopic and electrochemical properties of europium(III) ion in hydrophobic ionic liquids under controlled condition of water content by Nagaishi, Ryuji, Arisaka, Makoto, Kimura, Takaumi, Kitatsuji, Yoshihiro

“…In order to elucidate coordination states of europium(III) ion in ionic liquids (ILs) and its physicochemical behavior, spectroscopic and electrochemical…”
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Extraction of various metal ions from nitric acid to n-dodecane by diglycolamide (DGA) compounds by SASAKI, Yuji, ZHU, Zhi-Xuan, SUGO, Yumi, KIMURA, Takaumi

“…The extraction of various metals by N,N,N',N'-tetraoctyldiglycolamide (TODGA) from nitric acid to n-dodecane was investigated. It was obvious that divalent Ca…”
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