Journal
CHEMISTRY LETTERS
Volume 51, Issue 7, Pages 678-682Publisher
CHEMICAL SOC JAPAN
DOI: 10.1246/cl.220160
Keywords
Plutonium; ICP-MS/MS; Isotope speciation
Categories
Funding
- JAEA [JPJA19H19210081]
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Conventional ICP-MS struggles with simultaneous speciation of different Pu isotopes due to isobaric interferences, but ICP-MS/MS with CO2 gas reactions in a dynamic reaction cell effectively eliminates background noise caused by isotopic interference, enabling simultaneous analysis of Pu isotopes.
Simultaneous isotope speciation of various Pu isotopes is difficult to achieve with conventional inductively coupled plasma-mass spectrometry (ICP-MS) owing to isobaric interferences. In analyzing ICP tandem MS (ICP-MS/MS), CO2 gas reactions in a dynamic reaction cell (DRC) almost eliminated the background noise intensity produced by isobaric interference from isotopes originating from actinides such as Am, Cm, and U at the locations (m/z) of significant Pu isotopes (Pu-239, Pu-240, (241)pu, Pu-242, and Pu-244).
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