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研究者情報 |
Curriculum Vitaes
Profile Information
- Affiliation
- Assistant Professor, Faculty of Science, Department of Chemistry, Faculty of Science, Gakushuin University
- Degree
- 理学博士(Tokyo Institute of Technology)(BLANK)
- J-GLOBAL ID
- 200901029002150383
- researchmap Member ID
- 1000068594
Research Interests
6Research Areas
3Research History
15-
2001
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1992 - 1995
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1992 - 1995
Education
4Committee Memberships
1-
2005
Misc.
30-
Z. Naturforsch., 62a 721-729, 2007
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ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES, 42(3) 261-270, Sep, 2006
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Progress Report for a Grant-in-Aid for Scientific Research (C) from the Ministry of Education, Culture, Sports Science and Technology., 2004
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Bull. Chem. Soc. Jpn., 74(11) 2011-2017, 2001
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Geochem. J., 35(5) 277-283, 2001
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GEOCHIMICA ET COSMOCHIMICA ACTA, 64(9) 1485-1492, May, 2000
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Progress Report for a Grant-in-Aid for Scientific Research (B) from the Ministry of Education, 2000
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RADIOISOTOPES, 48(2) 79-86, 1999For the purpose of improving the accuracy and precision of tritium measurements in environmental water samples, the new method for the estimation of tritium concentration before electrolytic enrichment was proposed in the previous paper. A new apparatus of tritium enrichment by electrolysis using solid polymer electrolyte was developed. Using the apparatus, we examined the fact that there is a reliable correlation between the enrichment factor of deuterium and that of tritium. The constancy of the ratio, k, during the electrolysis, k=α (β-1) /β (α-1), is obtained and k value is 1.173±0.007, whereαandβare the separation factors of deuterium and tritium, respectively. The value of k is more stable than the values ofβ/αand of logβ/logα.Using the k value, the initial concentration of tritium in water sample, (T/H) 0, could be estimated by the formula (T/H) 0= (T/H) f [ (D/H) f/ (D/H) 0] -k, where (T/H) fand (D/H) fare the tritium and deuterium concentrations after electrolysis, and (D/H) 0is the deuterium concentration before electrolysis. It is not necessary to measure the water volume or weight before and after the electrolysis. When the deuterium concentrations before and after electrolysis are measured by mass spectrometer, the enrichment factor of deuterium becomes more accurate and precise.
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Radioisotopes, 48(2) 79-86, 1999
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Z. Naturforsch., 52a 811-820, 1997
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Journal of Solution Chemistry, 23,1073-1087, 1994
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Appl. Radiat. Isot., 42a,741-748, 1991
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Z. Naturforsch, 43a 449-453, 1988
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J. Phys. Chem., 89,4627-4632, 1985