Simultaneous radionuclide determination using PSresin: 2in2 and 2in1 tandem configuration

IF 5.7 2区 化学 Q1 CHEMISTRY, ANALYTICAL
I. Giménez, H. Bagán, A. Tarancón
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引用次数: 0

Abstract

Background

Analyzing mixtures of radionuclides is a complex task. Two situations are the mixtures of 89Sr with 90Sr and 90Sr with plutonium isotopes. The challenge arises in emergency scenarios resulting from accidents where the activity of 89Sr is over 20 times higher than that of 90Sr, complicating its quantification and requiring delayed measurements. In scenarios involving accidents, both 90Sr and plutonium isotopes, may be present within various matrices. Given their distinct elemental properties, separation is typically achieved using different methods, followed by a measurement post-elution through alpha spectrometry and scintillation techniques. Therefore, methods which allow the fast and reliable determination of those mixtures are still required in routine laboratories.

Results

A novel method for the simultaneous determination of radionuclide mixtures using PSresin is introduced. This innovative approach utilizes PSresins in tandem and has been applied to the analysis of 89Sr and 90Sr, as well as mixtures of 90Sr and plutonium isotopes. Two strategies were investigated: using two PSresin in two cartridges and two measurements (2in2); and using two PSresin in a single cartridge and one measurement employing α/β discrimination (2in1). The methods were validated with standard solutions and applied to river water samples, achieving quantification errors below 10% for both strategies within 5 and 8 h, respectively, from sample reception.

Significance

This represents a great improvement for 89Sr and 90Sr quantification which is achieved in less than 5 h since sample reception reducing the 30 days required by conventional methods. Additionally, the simultaneous measurement of 90Sr and plutonium isotopes reduce the number of required analysis to half. Reducing the overall time and cost of the analysis.

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来源期刊
Analytica Chimica Acta
Analytica Chimica Acta 化学-分析化学
CiteScore
10.40
自引率
6.50%
发文量
1081
审稿时长
38 days
期刊介绍: Analytica Chimica Acta has an open access mirror journal Analytica Chimica Acta: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Analytica Chimica Acta provides a forum for the rapid publication of original research, and critical, comprehensive reviews dealing with all aspects of fundamental and applied modern analytical chemistry. The journal welcomes the submission of research papers which report studies concerning the development of new and significant analytical methodologies. In determining the suitability of submitted articles for publication, particular scrutiny will be placed on the degree of novelty and impact of the research and the extent to which it adds to the existing body of knowledge in analytical chemistry.
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