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Determination of ultra-low 236U/238U isotope ratios by tandem quadrupole ICP-MS/MS
| Content Provider | Semantic Scholar |
|---|---|
| Author | Tanimizu, Masaharu Sugiyama, Naoki Ponzevera, Emmanuel Bayon, Germain |
| Copyright Year | 2013 |
| Abstract | Isotope ratios of 236U/238U were measured at levels below 10−7 by single collector ICPMS with a tandem quadrupole mass separation mechanism. Peak tailing of the prominent 238U+ ion beam on the 236U+ peak was reduced to the level of ∼10−10 by use of two quadrupole mass filters. The 235UH+ interference on 236U+ was efficiently reduced to a UH+/U+ ratio of 1 × 10−8 by an ion–molecule reaction between UH+ and O2 in a collision/reaction cell placed between the two quadrupoles. The resultant detection limit for 236U/238U measurement was better than those reported by any other ICPMS study. The 236U/238U ratios, measured as 236U16O+/238U16O+, were determined in the range 10−9 to 10−7 without correction for spectral interference. Accurate measurements of 236U/238U to as low as 1 × 10−10 are projected. |
| Starting Page | 1372 |
| Ending Page | 1376 |
| Page Count | 5 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/C3JA50145K |
| Volume Number | 28 |
| Alternate Webpage(s) | https://archimer.ifremer.fr/doc/00152/26358/24440.pdf |
| Alternate Webpage(s) | https://doi.org/10.1039/C3JA50145K |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
