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Determination of plutonium concentrations and isotope ratios in environmental samples with a double-focusing sector field ICP-MS
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.ORCID iD: 0000-0003-4505-4590
Lunds universitet.
Lunds universitet.
Lunds universitet.
1999 (English)In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, E-ISSN 1872-9576, Vol. 423, no 2-3, p. 472-479Article in journal (Refereed) Published
Abstract [en]

An analytical method for the ultratrace and isotopic analysis of plutonium in sediment samples using a double focusing sector field ICP mass spectrometer (ICP-SMS) is described. A detection limit for plutonium in the sub-fg ml-1 range was achieved. The ICP-SMS results were in acceptable agreement with alpha spectrometry. At the low fg ml-1 level a precision in isotope ratio measurements of 2-10% RSD was achieved. Accuracy of the results was assessed by 238U/235U and 205Tl/203Tl isotope ratio determinations using isotopic standards and a natural Tl standard solution, respectively. It was shown that correction for 238UH+ and 238UH2+ is necessary for both plutonium concentration and isotopic composition determinations. From a practical standpoint, the use of ICP-SMS for plutonium measurements is an attractive alternative to techniques such as alpha spectrometry and thermal ionization mass spectrometry (TIMS) due to its higher throughput and ability to measure both concentration and isotopic ratio on the same sample.

Place, publisher, year, edition, pages
1999. Vol. 423, no 2-3, p. 472-479
National Category
Geochemistry
Research subject
Applied Geology
Identifiers
URN: urn:nbn:se:ltu:diva-7923Local ID: 65b31820-2d5c-11dd-9c9b-000ea68e967bOAI: oai:DiVA.org:ltu-7923DiVA, id: diva2:980813
Note
Godkänd; 1999; 20080529 (cira)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-02-26Bibliographically approved

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Rodushkin, Ilya

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