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

Nicolas Guérin; Marc-Antoine Langevin; Kenny Nadeau; Charles Labrecque; Alexandre Gagné; Dominic Larivière

doi:10.1016/j.apradiso.2010.06.021

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

Appl Radiat Isot. 2010 Dec;68(12):2132-9. doi: 10.1016/j.apradiso.2010.06.021. Epub 2010 Jul 1.

Authors

Nicolas Guérin¹, Marc-Antoine Langevin, Kenny Nadeau, Charles Labrecque, Alexandre Gagné, Dominic Larivière

Affiliation

¹ Laboratoire de radioécologie, Département de chimie, Université Laval, 1045 Avenue de la Médecine, Québec, QC, Canada G1V 0A6. Nicolas.guerin.1@ulaval.ca

PMID: 20630769
DOI: 10.1016/j.apradiso.2010.06.021

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.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Chromatography / methods*
Mass Spectrometry
Neptunium / analysis*

Substances

Neptunium