Determination of 240Pu/239Pu, 241Pu/239Pu and 242Pu/239Pu isotope ratios in environmental reference materials and samples from Chernobyl by thermal ionization mass spectrometry (TIMS) and filament carburization
Title: Determination of 240Pu/239Pu, 241Pu/239Pu and 242Pu/239Pu isotope ratios in environmental reference materials and samples from Chernobyl by thermal ionization mass spectrometry (TIMS) and filament carburization
Author: Jakopič, Rožle / Richter, Stephan / Kühn, Heinz / Aregbe, Yetunde
Reference: Journal of Analytical Atomic Spectrometry, 25 (6), p.815, Jan 2010
doi: 10.1039/b925918j
Keywords:Environmental analysis, Isotope analysis, Quantitative organic analyses, Pu.
Abstract: In various areas such as e.g. nuclear safeguards, environmental monitoring, nuclear forensics, precise, sensitive and accurate plutonium analysis are needed. Plutonium isotope ratios are used as “fingerprints” in revealing different sources of plutonium contamination in the environment. In this study, 240Pu/239Pu, 241Pu/239Pu and 242Pu/239Pu isotope ratios were determined in four different reference materials and samples from Chernobyl using Thermal Ionization Mass Spectrometry (TIMS) in combination with multiple ion counting (MIC) and filament carburization. After the samples were leached with 8M HNO3, plutonium was co-precipitated on CaC2O4 and separated from interfering radionuclides and matrix elements by anion exchange and extraction chromatography (TEVA Spec).
URL: http://pubs.rsc.org/en/Content/ArticleLanding/2010/JA/b925918j
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