Guérin Nicolas, Langevin Marc-Antoine, Nadeau Kenny, Labrecque Charles, Gagné Alexandre, Larivière Dominic
Laboratoire de radioécologie, Département de chimie, Université Laval, 1045 Avenue de la Médecine, Québec, QC, Canada G1V 0A6.
Appl Radiat Isot. 2010 Dec;68(12):2132-9. doi: 10.1016/j.apradiso.2010.06.021. Epub 2010 Jul 1.
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.
镎（V）离子在酸性介质中不稳定，这限制了它们在色谱树脂上的萃取。我们开发了一种新颖的分析方法，通过萃取色谱法将镎转化为Np(VI)后，采用α光谱法或电感耦合等离子体质谱法（ICP-MS）来测量镎。我们研究了各种氧化试剂的反应活性，并测定了Np(IV、V和VI)在各种萃取色谱载体上的保留容量。使用一种简单的方法，即使用两种UTEVA树脂，快速检测土壤和沉积物样品中的镎。
