Search Results 1-20 of 1092

  • Urinary free metanephrines measurement in dogs with adrenal gland diseases using a new simple liquid chromatography tandem mass spectrometry method

    SASAKI Noboru , IKENAKA Yoshinori , INOUE Yumiko , ICHISE Takahiro , NAGATA Noriyuki , ISHIZUKA Mayumi , NAKAYAMA Syouta MM , NAKAMURA Kensuke , TAKIGUCHI Mitsuyoshi

    … Urine samples were mixed with stable isotope internal standards and thereafter purified by ultrafiltration. … The purified samples were analyzed by LC-MS/MS in the multiple reaction monitoring mode after separation on a multimode octa decyl silyl column. …

    Journal of Veterinary Medical Science 83(4), 648-655, 2021

    J-STAGE 

  • Determination of the tungsten isotope composition in seawater: The first vertical profile from the western North Pacific Ocean

    Fujiwara Yuta , Tsujisaka Makoto , Takano Shotaro , Sohrin Yoshiki

    … The stable isotope ratio of W is a new tracer in oceanographic studies and a new proxy in paleoceanographic studies; … We present a novel method for analysis of the concentrations and isotope ratios of W and Mo in seawater, consisting of solid phase extraction, chromatographic separation using anion exchange resin AG1 X8, and measurement by MC-ICP-MS. Both W and Mo are quantitatively recovered by this method, which was applied to seawater samples collected from the North Pacific Ocean. …

    Chemical Geology (555), 2020-11-20

    IR 

  • 12. Others

    … In case that corrections are made, an errata will be provided in the following webpage: https://www.rri.kyoto-u.ac.jp/PUB/report/PR/ProgRep2019/ProgRep2019.htmlCO12-1 Isotope Dilution-Neutron Activation Analysis for Quantifying Hafnium /T. … Kubota et al.(31110) [281]CO12-12 Study of Isotope Separation via Chemical Exchange Reaction /R. …

    KURNS Progress Report (2019), 271-288, 2020-08

    IR 

  • Boron Isotope Fractionation Accompanying Formation of Calcium Borate Minerals at 25℃

    服部 章子 , 木川田 喜一 , 大井 隆夫

    日本海水学会誌 = Bulletin of the Society of Sea Water Science, Japan 74(3), 176-183, 2020-06

  • Compositional and carbon isotopic changes of natural gas through generation, migration and accumulation processes  [in Japanese]

    金子 信行 , 猪狩 俊一郎

    石油技術協会誌 = Journal of the Japanese Association for Petroleum Technology 85(1-6), 62-73, 2020-01

  • In-Situ Observation of Dynamic Interfacial Phenomena for Application to Hydrogen Energy Society  [in Japanese]

    MATSUSHIMA Hisayoshi

    Journal of The Surface Finishing Society of Japan 71(8), 512-514, 2020

    J-STAGE 

  • Development of high-precision La isotope analysis by MC-ICP-MS  [in Japanese]

    Suzuki Mitsuru , Iizuka Tsuyoshi , Yamamoto Kota , Hirata Takafumi

    <p><sup>138</sup>Laは、<i>r-</i>、<i>s-</i>過程から遮蔽された核種であり、超新星爆発による合成に由来する。そのため、初期太陽系内の<sup>138</sup>La存在度の変動を検出することで、超新星爆発起源の同位体異常を調べることができる。しかしながら、& …

    Abstracts of Annual Meeting of the Geochemical Society of Japan 67(0), 82, 2020

    J-STAGE 

  • Non-traditional isotope studies for earth metallomics  [in Japanese]

    Hirata Takafumi

    … The analytical community is actively solving problems, such as spectral interferences, correction of mass bias effect, high-yield chemical separation and purification processes, or reduction of the contamination of analytes. …

    Chikyukagaku 54(3), 113-151, 2020

    J-STAGE 

  • Bromine-isotope Selective Ionization Using Field-free Alignment of IBr Isotopologues with a Switched Nanosecond Laser Pulse

    Akagi Hiroshi , Kumada Takayuki , Otobe Tomohito , Itakura Ryuji , Hasegawa Hirokazu , Ohshima Yasuhiro

    … <p>We demonstrate isotope selective ionization of I<sup>79</sup>Br and I<sup>81</sup>Br isotopologues using field-free alignment induced by a linearly-polarized nanosecond laser pulse with rapid turn off at the maximum. … This is the first demonstration of laser isotope separation of heavy elements using field-free alignment and angular dependent ionization.</p> …

    Chemistry Letters 49(4), 416-418, 2020

    J-STAGE 

  • Isotope Separation by Microreactor  [in Japanese]

    硲 隆太 , 濱崎 竜英 , 佐久間 洋一

    大阪産業大学産業研究所所報 = Bulletin of the Institute for Industrial Research of Osaka Sangyo University (42), 1-5, 2019-12

  • 12. Others

    CO12-7 Monuments of Contaminated Objects and Memories Nagadoro Area, Iitate Village, Fukushima·· /M. Takagi et al. (30045) [249]

    KURNS Progress Report (2018), 243-257, 2019-08

    IR 

  • Research frontier of tritium for fusion reactor – toward the DEMO reactor (8):Tritium Processing  [in Japanese]

    Isobe Kanetsugu , Iwai Yasunori

    <p> 重水素-トリチウム燃料で動作する核融合炉は施設内に燃料循環システムを設ける。ITERの燃料循環システムは,プラズマ実験の要求に基づく燃料に対する高いフレキシビリティと高い信頼性を兼ね備え,前例のない大流量の重水素-トリチウム流を処理しなければならない。燃料循環システムの各機器の開発状況と原型炉に向けた燃料循環システムのあり方について解説する。</p>

    Journal of the Atomic Energy Society of Japan 61(2), 138-142, 2019

    J-STAGE 

  • Lithium Isotope Green Separation Using Water Scrubbing

    Zhang Pengrui , Wang Mingyong , Sun Jinhe , Shao Fei , Jia Yongzhong , Jing Yan

    … Comparing with traditional extraction enrichment, scrubbing is the main process of lithium isotope enrichment for new strategies, rather than the extraction. … This makes it possible to replace the lithium amalgam method for separation of lithium isotopes and may shed light on separation of the other stable isotopes.</p> …

    Chemistry Letters 48(12), 1541-1543, 2019

    J-STAGE 

  • Eu isotope fractionation in the geological rocks  [in Japanese]

    Seung―Gu Lee , Tsuyoshi Tanaka

    <p>abstract</p>

    Abstracts of Annual Meeting of the Geochemical Society of Japan 66(0), 199, 2019

    J-STAGE 

  • Application of Ion Exchange Technology to Nuclide Separation and Isotope Separation in Nuclear Energy Chemistry  [in Japanese]

    SUZUKI Tatsuya

    <p>原子力工学分野では,核分裂・核融合に係わらず,種々の化学的な操作が必要とされており,これら原子力工学分野における化学は原子力化学(Nuclear Energy Cheimistry)と総称されるが,その中で核種分離や同位体分離は,核燃料サイクルや炉化学等で欠かせないものである。著者はイオン交換の技術を原子力化学分野における核種分離および同位体分離への応用した研究を行っており,本論 …

    Journal of Ion Exchange 30(3), 33-38, 2019

    J-STAGE 

  • Biobased Contents for Rubber and Rubber Products by Accelerator Mass Spectrometry (AMS)  [in Japanese]

    NAKAJIMA Mari , SAITO Akira , KUNIOKA Masao , ARAKI Shunji

    … The biobased mass contents were calculated from the measured values of AMS and the composition ratio, which was obtained by separation analysis for each component of solvent extract, rubbers and carbon black which included inorganic fillers. …

    NIPPON GOMU KYOKAISHI 92(8), 287-294, 2019

    J-STAGE 

  • Development of a Purification Method for Compound Specific Carbon Isotope Analysis of Phytosterols and Long-chain <i>n</i>-fatty Acids in Higher Plants  [in Japanese]

    TAKEUCHI Riko , CHIKARAISHI Yoshito , OGAWA Nanako O. , FUROTA Satoshi , OHKOUCHI Naohiko , AOKI Motohide , UCHIDA Tatsuya , UMEMURA Tomonari , KUMATA Hidetoshi

    … 実験を行った.ブナ科コナラ(Quercus serrate)から抽出,精製して得たステロール画分をアセチル化,脂肪酸画分をメチルエステル化してガスクロマトグラフ燃焼同位体比質量分析計(gas chromatograph - combustion - isotope ratio mass spectrometer, GC-C-IRMS)で分析したところ,stigmast-5-en-3-β-ol(β-シトステロール)並びに長鎖飽和脂肪酸(C<sub>26</sub>,<sub>28</sub>)については,同位体比測定の妨害となるような近接ピ …

    BUNSEKI KAGAKU 68(5), 297-306, 2019

    J-STAGE 

  • Application of Stable Isotopes in Medicine and Pharmacy  [in Japanese]

    Kajiwara Yasuhiro , Kajiwara Masahiro

    <p>安定同位体を利用した研究報告は数多くあり,今後,益々発展していくと思われる。今回,その安定同位体の分離・濃縮技術,1970年代から現在までの研究事例として<sup>13</sup>C-標識化合物を用いたビタミンB<sub>12</sub>の生合成研究,既に医療の現場で広く普及している<i>Helicobacter pyl …

    RADIOISOTOPES 68(2), 37-48, 2019

    J-STAGE  Ichushi Web 

  • Absorbent property of fullerene for cesium isotope separation investigated using X-ray photoelectron spectroscopy (Proceedings of Actinides 2017)

    Sekiguchi Tetsuhiro , Yokoyama Keiichi , Uozumi Yuki , Yano Masahiro , Asaoka Hidehito , Suzuki Shinichi , Yaita Tsuyoshi

    Progress in nuclear science and technology 5, 161-164, 2018-11

  • 2. Nuclear Physics and Nuclear Data

    … (29072) [103]CO2-6 Study of Isotope Separation via Chemical Exchange Reaction /R. …

    KURRI Progress Report 2017(APRIL 2017 - MARCH 2018), 99-105, 2018-08

    IR 

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