Rapid screening methods for beta-emitters in food samples

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 …”

Rapid Quantification of Radioactive Strontium-90 in Fresh Foods via Online Solid-Phase Extraction–Inductively Coupled Plasma–Dynamic Reaction Cell-Mass Spectrometry and Its Comparative Evaluation with Conventional Radiometry

“…90 Sr behaves similar to the homologous element Ca because of their similar chemical properties; therefore, osteogenic sarcomas can potentially arise because of the incorporation and accumulation of 90 Sr in the growing bone and tissues when humans absorb 90 Sr from food . Several reports − have reported the transfer of 90 Sr into foods such as seafood as well as animal, agricultural, − and dairy products, − which were contaminated by past nuclear incidents. The harmful influence on human health by ingesting such contaminated food has also been reported. − Thus, 90 Sr analysis, in particular, the rapid analysis of 90 Sr, in fresh foods was performed. , …”