Determination of neptunium in environmental samples by extraction chromatography after valence adjustment.

Abstract

Neptunium(V) ions are unstable in acid media, which limits their extraction on chromatographic resins. We developed a novel analytical method to measure Np by either α-spectrometry or inductively coupled plasma mass spectrometry (ICP-MS) after extraction chromatography as Np(VI). We investigated the reactivity of various oxidizing reagents, and determined the retention capacity of Np(IV, V, and VI) on various extraction chromatographic supports. A simple method using two UTEVA resins was used to rapidly detect Np in soil and sediment samples.

DOI: 10.1016/j.apradiso.2010.06.021

Cite this paper

@article{Gurin2010DeterminationON, title={Determination of neptunium in environmental samples by extraction chromatography after valence adjustment.}, author={Nicolas Gu{\'e}rin and M. Langevin and Kenny Nadeau and Charles Labrecque and Alexandre Gagn{\'e} and Dominic Larivi{\`e}re}, journal={Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine}, year={2010}, volume={68 12}, pages={2132-9} }