Detection of Polynuclear Zirconium Hydroxide Species in Aqueous Solution by Desktop ESI-MS
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概要
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The direct detection of polymerized tetravalent zirconium hydroxides was performed by using a commercially available desktop electrospray ionization mass spectrometry device equipped with a nanospray capillary heated at 90°C. It was confirmed that the abundance ratio of the species did not depend significantly on the desolvation line temperature up to 170°C. Under the acidic pH condition, the positively charged polymers up to 12-mer species of zirconium were assigned based on the m/z values and the natural abundance isotopic compositions of Zr and Cl. The distribution of the species was observed to change depending on the pH value and the aging period. The hydrolysis constants for the polynuclear species predominantly formed in a solution were estimated from the results of the analysis of the observed spectra with the help of an electrostatic hard sphere model. The obtained values were found to be comparable with the literature ones.
- 2010-12-01
著者
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MORIYAMA Hirotake
Research Reactor Institute, Kyoto University
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TAKAGI Ikuji
Department of Nuclear Engineering, Kyoto University
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Takagi Ikuji
Dep. Of Nuclear Engineering Kyoto Univ.
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Takagi I
Kyoto Univ. Kyoto
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SASAKI Takayuki
Department of Surgery, Shinshu University School of Medicine
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Takagi Ikuji
Department Of Nuclear Engineering Kyoto University
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MORIYAMA Hirotake
Department of Nuclear Engineering, Kyoto University
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Moriyama Hirotake
Dep. Of Nuclear Engineering Kyoto Univ.
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Moriyama Hirotake
Research Reactor Institute Kyoto University
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Moriyama Hirotake
Department Of Nuclear Engineering Kyoto University
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KOBAYASHI Taishi
Department of Nuclear Engineering, Kyoto University
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Kawasaki Toru
Department Of Nuclear Engineering Kyoto University
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NAKAOKA Osamu
Department of Nuclear Engineering, Kyoto University
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ARAKAWA Ryuichi
Kansai University, Department of Chemistry and Materials Engineering
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Kobayashi Taishi
Department Of Nuclear Engineering Kyoto University
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Nakaoka Osamu
Department Of Nuclear Engineering Kyoto University
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Arakawa Ryuichi
Kansai University Department Of Chemistry And Materials Engineering
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Sasaki Takayuki
Department Of Nuclear Engineering Kyoto University
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Sasaki Takayuki
Department Of Biology Faculty Of Science Niigata University
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