A direct determination of 239Pu in femtomole range in aquatic solution by neutron activation

J. I. Kim, W. Scheibner, F. Baumgärtner, R. Schwankner

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

A method is presented which facilitates the direct determination of 239Pu in aquatic solution by the (n,f) reaction with reactor neutrons and subsequent gamma spectrometry without chemical elaboration. Trace impurities of water constituent heavy metal elements are simultaneously determined through their (n, γ) reactions. The sensitivity attained by this method is 1.6×10-15 mol/l 239Pu by measuring the fission product pairs 132Te/132I or 140Ba/140La. The trace impurities determined in the range of 10-8∼10-13 mol/l give an insight into the chemical behaviour of Pu in a given water. The natural uranium concentration plays a role to limit the Pu determination on the one hand and to help understanding the chemical behaviour of Pu on the other hand.

Original languageEnglish
Pages (from-to)821-826
Number of pages6
JournalFresenius' Zeitschrift für Analytische Chemie
Volume323
Issue number8
DOIs
StatePublished - Jan 1986

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