A new method for the determination of plutonium and americium using high pressure microwave digestion and alpha-spectrometry or ICP-SMS

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ID Serval
serval:BIB_BB4BF0918BD0
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
A new method for the determination of plutonium and americium using high pressure microwave digestion and alpha-spectrometry or ICP-SMS
Périodique
Journal of Radioanalytical and Nuclear Chemistry
Auteur⸱e⸱s
Luisier F., Alvarado J.A.C., Steinmann P., Krachler M., Froidevaux P.
ISSN
0236-5731
Statut éditorial
Publié
Date de publication
2009
Peer-reviewed
Oui
Volume
281
Numéro
3
Pages
425-432
Langue
anglais
Notes
Publication type : Article
Résumé
Plutonium and americium are radionuclides particularly difficult to measure in environmental samples because they are alpha-emitters and therefore necessitate a careful separation before any measurement, either using radiometric methods or ICP-SMS. Recent developments in extraction chromatography resins such as Eichrom (R) TRU and TEVA have resolved many of the analytical problems but drawbacks such as low recovery and spectral interferences still occasionally occur. Here, we report on the use of the new Eichrom (R) DGA resin in association with TEVA resin and high pressure microwave acid leaching for the sequential determination of plutonium and americium in environmental samples. The method results in average recoveries of 83 +/- 15% for plutonium and 73 +/- 22% for americium (n = 60), and a less than 10% deviation from reference values of four IAEA reference materials and three samples from intercomparisons exercises. The method is also suitable for measuring Pu-239 in water samples at the mu Bq/l level, if ICP-SMS is used for the measurement.
Mots-clé
Plutonium, Americium, Microwaves digestion, TEVA resin, DGA resin, ICP-SMS, COLUMN EXTRACTION METHOD, ENVIRONMENTAL-SAMPLES, CHROMATOGRAPHY, ACTINIDES, SEDIMENTS, SOILS, SEPARATION, PU239+240, ISOTOPES, EXCHANGE
Web of science
Open Access
Oui
Création de la notice
28/10/2009 9:32
Dernière modification de la notice
14/02/2022 7:56
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