| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Determination of ultra-low U-236/U-238 isotope ratios by tandem quadrupole ICP-MS/MS
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| Autores: |
Tanimizu, Masaharu
Sugiyama, Naoki
Ponzevera, Emmanuel
Bayon, Germain
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| Data: |
2013
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| Ano: |
2013
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| Resumo: |
Isotope ratios of U-236/U-238 were measured at levels below 10(-7) by single collector ICPMS with a tandem quadrupole mass separation mechanism. Peak tailing of the prominent U-238(+) ion beam on the U-236(+) peak was reduced to the level of similar to 10(-10) by use of two quadrupole mass filters. The (UH+)-U-235 interference on U-236(+) was efficiently reduced to a UH+/U+ ratio of 1 x 10(-8) by an ion-molecule reaction between UH+ and O-2 in a collision/reaction cell placed between the two quadrupoles. The resultant detection limit for U-236/U-238 measurement was better than those reported by any other ICPMS study. The U-236/U-238 ratios, measured as (UO+)-U-236-O-16/(UO+)-U-238-O-16, were determined in the range 10(-9) to 10(-7) without correction for spectral interference. Accurate measurements of U-236/U-238 to as low as 1 x 10(-10) are projected.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
http://archimer.ifremer.fr/doc/00152/26358/24440.pdf
DOI:10.1039/c3ja50145k
http://archimer.ifremer.fr/doc/00152/26358/
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| Editor: |
Royal Soc Chemistry
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| Formato: |
application/pdf
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| Fonte: |
Journal Of Analytical Atomic Spectrometry (0267-9477) (Royal Soc Chemistry), 2013 , Vol. 28 , N. 9 , P. 1372-1376
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| Direitos: |
The Royal Society of Chemistry 2013
info:eu-repo/semantics/openAccess
restricted use
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