Determination of rare-earth elements in uranium-bearing materials by inductively coupled plasma mass spectrometry

Nuclear Forensic Science: Analysis of Nuclear Material Out of Regulatory Control

“…have distinctive REE signatures (Fryer & Taylor 1987, Mercadier et al 2011, Eglinger et al 2013. It has been hypothesized that REE would be unlikely to be fractionated during processing and therefore might make a robust UOC signature (Varga et al 2010a). In order to more accurately determine low-level REE concentrations in samples with a high concentration of U, Varga et al (2010b) developed a selective extraction chromatographic separation using TRU resin (Eichrom Technologies, Inc.) to preconcentrate the REE prior to analysis.…”

LA-ICP-MS of rare earth elements concentrated in cation-exchange resin particles for origin attribution of uranium ore concentrate

“…Impurities in UOCs, such as, Fe [2], Sr [3], Pb [3], and rare earth elements (REE) [4][5][6], which exhibit inherent characteristics of UOC have been determined for origin attribution of UOCs.…”

Developing Nuclear Forensics Signatures and National Nuclear Forensics Libraries for the African Continent: A Case Review for South Africa

“…This need arose due to rising nuclear security concerns about the safety and proliferation of the nuclear materials [9,10] and possible diversion for illicit purposes by nuclear terrorists [11,12]. Each nation should have a National Nuclear Programme aimed at characterization of seized nuclear Some of the Instruments used for geo-chronometric analysis of intercepted nuclear materials from a nuclear facility include: the LA ICP-MS or laser-ablation micro-sampling (LAM-ICP-MS), ICP-MS [14,[19][20][21], as well as Gamma Spectrometry [22].…”