Journal
MICROCHEMICAL JOURNAL
Volume 181, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.microc.2022.107637
Keywords
Radionuclides; Selective separation; Solid-phase extraction (SPE); Proprietary SPE products; Environmental samples
Categories
Funding
- Japan Society for the Promotion of Science (JSPS) [17K00622, 21K12287, 21H03632]
- Science and Technology Research Partnership for Sustainable Development (SATREPS)
- Japan Science and Technol-ogy Agency (JST)
- Japan International Cooperation Agency (JICA) [JPMJSA1603]
- Environmental Radioactivity Research Network Center Grant from Fukushima University, Japan [F-22-30]
- Bangabandhu Fellowship on Science and Technology from Banga-bandhu Science and Technology Fellowship Trust, Ministry of Science and Technology, Bangladesh
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This article reviews the methods for selective separation of radioactive nuclides using proprietary solid-phase extraction products in environmental matrices. These proprietary products have high selectivity and affinity, and can effectively purify samples during sample preparation, with the advantages of economic viability and reusability.
Precise and rapid determination of radionuclides (RNs) in the environment is essential for environmental monitoring, radiological protection, and radioactive waste management due to the increasing use of nuclear energy globally, as well as the unprecedented release of RNs after nuclear accidents, e.g., Chornobyl, Fukushima. In this regard, sample preparation, which is an error-prone step in RN analysis, needs more attention to improve selectivity and sensitivity of analytical measurements by sample clean-up or pre-concentration. Solid-phase extraction (SPE) is an effective sample preparation technique capable of selectively separating target RNs from other matrix ions in environmental samples. Commercially available proprietary SPE products, packaged in columns, cartridges, or disk formats, have been widely used for sample purification in RN analysis. They have high affinity and selectivity for target RNs, and their reusability and ease of large-scale production make them more economical than other options. Since there have not been any reviews regarding selective separation of RNs using proprietary SPE products, this work reviews approaches that have been adopted for isolation of RNs (Cs, Sr, Tc, Th, U, Np, Pu, Am, and Cm) from environmental matrices. The review assumably provides information on selecting macro-SPE-assisted sample preparation techniques to separate and analyze RNs in environmental matrices.
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