Determination of plutonium isotopes ( 238,239,240 Pu) and strontium ( 90 Sr) in seafood using alpha spectrometry and liquid scintillation spectrometry

Scalable Dialysis-Based Method for the Isolation of Strontium from Milk for Radioanalysis

“…In addition, strontium exhibits a high degree of environmental mobility that rivals, and in some cases exceeds, that of cesium. − It is also environmentally persistent, with effective (i.e., integrated) environmental half-lives of 1.8–2.1 and 8–10 y found in the short (2–3 y) and long (30 y) terms, respectively, from Austrian data following the cessation of fallout from atmospheric nuclear weapons testing . With these considerations, a comprehensive and timely evaluation of 90 Sr contamination in environmental and foodstuff samples serves as a key input to decisions affecting land management and human health due to exposure following a nuclear release. − Among sample types, cow milk (henceforth simply referred to as milk) is one of the most relevant environmental markers owing to its dietary prevalence, the large geographical area represented by a single sample, and the high degree to which radionuclides of iodine, cesium, and strontium are incorporated. − However, the analysis of 90 Sr in milk can be exceedingly laborious since strontium and/or its yttrium progeny must be chemically isolated before measurement owing to the nature of beta particle emission and the potential for spectral and isobaric interferences …”

Optimisation of plutonium separations using TEVA cartridges and ICP-MS/MS analysis for applicability to large-scale studies in tropical soils

“…3 Radiometric and mass spectroscopy techniques, such as alpha spectrometry, accelerator mass spectrometry (AMS), and inductively coupled plasma mass spectrometry (ICP-MS), can be used to analyse Pu in a variety of samples. [7][8][9][10] In recent years, ICP-MS has gained popularity due to its low detection limits, short analytical time, high sample throughput, relatively simple operation, and lower instrument cost. 5,[11][12][13][14] Despite the benets of ICP-MS, the technique is severely constrained by polyatomic interferences, most notably uranium hydrides (UH + ).…”

Measurements Isotopic Ratios Signature and Level Concentration of Pb and Sr from Several Romanian Wines

“…Strontium is a very important element for teeth and bones (Shin et al 2017), but recent studies show that the ingestion of Sr may be a potential threat to human health due to its role in abnormal skeletal developments and bone calcification (Langley et al 2009). About 320 mg Sr is in our body (Nielsen, 2004), up to 99 % of this amount is stored in bones, and only 0.7 % is dissolved in the extracellular fluid (Cabrera et al 1999).…”