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森 勝伸*; 佐柄 克哉*; 新井 香織*; 中谷 暢丈*; 大平 慎一*; 戸田 敬*; 板橋 英之*; 小崎 大輔*; 須郷 由美; 渡辺 茂樹; et al.
Journal of Chromatography A, 1431, p.131 - 137, 2016/01
被引用回数:10 パーセンタイル:41.68(Biochemical Research Methods)Selective separation and sensitive detection of dissolved silicon and boron (DSi and DB) in aqueous solution was achieved by connecting an electrodialytic ion isolation device (EID), an ion-exclusion chromatography (IEC) column, and a corona charged aerosol detector (CCAD) in sequence. They were separated by IEC using pure water eluent. Detection of DSi and DB by the CCAD was effective for much greater sensitivity than by conductimetric detection. The EID removed salt from the sample prior to the IEC-CCAD. The combination of EID, IEC and CCAD successfully separated and determined DSi and DB in artificial seawater and hot-spring water samples by eluting pure water.
竹内 徹也*; 安井 慎一*; 戸田 雅敏*; 松下 昌輝*; 吉内 伸吾*; 大家 政洋*; 片山 敬亮*; 広瀬 雄介*; 吉谷 尚久*; 本多 史憲*; et al.
Journal of the Physical Society of Japan, 79(6), p.064609_1 - 064609_15, 2010/06
被引用回数:42 パーセンタイル:83.7(Physics, Multidisciplinary)Metamagnetic behavior of the heavy-fermion compound YbIrZn was studied by magnetization, de Haas-van Alphen effect, magnetoresistance, specific heat, thermal expansion and magnetostriction. Metamagnetic behavior was observed for all the physical properties at low temperatures. It is remarkable that the Fermi surfaces observed in the dHvA effect unchanges across the metamagnetic transition.
吉内 伸吾*; 戸田 雅敏*; 松下 昌輝*; 安井 慎一*; 広瀬 雄介*; 大家 政洋*; 片山 敬亮*; 本多 史憲*; 杉山 清寛*; 萩原 政幸*; et al.
Journal of the Physical Society of Japan, 78(12), p.123711_1 - 123711_4, 2009/12
被引用回数:39 パーセンタイル:82.77(Physics, Multidisciplinary)High-field magnetization and de Haas-van Alphen effect were measured on a heavy fermion compound YbIrZn. Large cyclotron masses ranging from 4 to 27 were detected in the dHvA experiment, and are found to be reduced at magnetic fields higher than 120 kOe. From the present experimental results together with the 4f-itinerant band calculations, the 4f electrons are considered to form heavy fermion state.