Strontium Isotope Effects Observed in Liquid Chromatography with Crown Ether Resins
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概要
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Liquid chromatography using highly porous silica beads in which the pores were embedded with a benzo-15-crown-5 ether resin or using dicyclohexano-18-crown-6 ether resin as column packing material was employed to study strontium isotope fractionation. While no appreciable isotope effects of strontium were observed for the dicyclohexano-18-crown-6 ether resin, the enrichment of heavier isotopes of strontium was observed in the frontal parts of the strontium chromatograms for the benzo-15-crown-5 ether resin with the isotope effects on the order of 10−4. The observed strontium isotope effects were mass-dependent, indicating that they mostly come from isotope effects based on molecular vibration. Molecular orbital calculations supported the present experimental results in a qualitative fashion.
- 2010-02-01
著者
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NOMURA Masao
Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology
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OI Takao
Faculty of Science and Technology, Sophia University
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FUKUDA Yuji
Faculty of Science and Technology, Sophia University
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ZHANG Yong-Hong
Faculty of Science and Technology, Sophia University
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SUZUKI Tatsuya
Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology
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FUJII Yasuhiko
Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology
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Suzuki Takamasa
Department Of Electronics Nagoya University:r&d Department Nippondenso Co. Ltd.
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Suzuki T
Free Electron Laser Research Institute Inc.
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Fujii Y
Research Laboratory For Nuclear Reactors Tokyo Institute Of Technology
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Fujii Yasuhiko
Research Laboratory For Nuclear Reactors Tokyo Institute Of Technology
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Oi Takao
Faculty Of Science And Technology Sophia University
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Oi Takao
Department Of Chemistry Faculty Of Science And Technology Sophia University
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Fukuda Yuji
Faculty Of Science And Technology Sophia University
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Nomura M
Research Laboratory For Nuclear Reactors Tokyo Institute Of Technology
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Nomura Masao
Research Laboratory For Nuclear Reactors Tokyo Institute Of Technology
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Suzuki T
Taiyo Yuden Co. Ltd. Gunma Jpn
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Suzuki T
Nhk (japan Broadcasting Corp.) Tokyo
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Zhang Yong‐hong
Fac. Of Sci. And Technol. Sophia Univ.
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Zhang Yong-hong
Faculty Of Science And Technology Sophia University
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Suzuki Tatsuro
Department Of Electrical Engineering Shizuoka University
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Suzuki Tatsuya
Research Laboratory For Nuclear Reactors Tokyo Institute Of Technology
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Fujii Yoshihisa
Faculty Of Engineering Hiroshima University
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Suzuki Tatsuhiko
Department Of Electrical Engineering Faculty Of Engineering Science University Of Tokyo
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Suzuki Toshiharu
Sony Sc Ulsi R&d Laboratories
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Suzuki T
Process & Manufacturing Engineering Center Semiconductor Company Toshiba Corporation
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Suzuki T
Department Of Applied Chemistry Faculty Of Technology Tokyo University Of Agriculture And Technology
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Nomura M
Tokyo Inst. Technol.
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Suzuki T
Taiyo Yuden Co. Ltd.
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Suzuki T
Tdk Corp. Chiba Jpn
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