TY - JOUR
T1 - Reusable selective sensing-substrate for ultrasensitive and rapid detection of uranium radioisotopes
AU - Ryu, Jeonghyeon
AU - Park, Ji young
AU - Ko, Young Gun
AU - Kim, Hyuncheol
AU - Lee, Wanno
AU - Ahn, Dong June
N1 - Funding Information:
Jeonghyeon Ryu: Writing - original draft preparation, Methodology, Investigation, Formal analysis. Ji-young Park: Methodology, Investigation, Formal analysis, Resources. Young Gun Ko: Conceptualization, Methodology, Formal analysis, Writing - review & editing, Visualization, Management and coordination responsibility for the research activity planning and execution, Supervision. Hyuncheol Kim: Supervision, Methodology, Formal analysis, Management and coordination responsibility for the research activity planning and execution. Wanno Lee: Acquisition of the financial support for the project leading to this publication. Dong June Ahn: Supervision, Management and coordination responsibility for the research activity planning and execution.
Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/10
Y1 - 2021/10
N2 - An analytical method based on a fabricated analytical disc was developed using a phosphonate-immobilized quartz substrate for the rapid analysis of uranium. Phosphonate groups selectively adsorb uranium dissolved in a solution through the formation of stable complexes. The uranium concentration and isotopic ratios in the sample can rapidly be determined by measuring the radioactivity of the adsorbed uranium on the analytical disc using alpha-particle spectrometry. The chemical structure and elemental composition of the fabricated disc were analyzed by XPS, and the adsorption properties were evaluated as functions of pH of a sample solution, reaction time, and adsorbate concentration, as well as reusability and selectivity, using alpha-particle spectrometry, ICP-OES, and ICP-MS. An analytical method was developed based on these properties and validated with prepared uranium solutions by assessing the chemical recovery yield, relative error, and relative standard deviation. The developed method is expected to be used for on-the-spot uranium analysis.
AB - An analytical method based on a fabricated analytical disc was developed using a phosphonate-immobilized quartz substrate for the rapid analysis of uranium. Phosphonate groups selectively adsorb uranium dissolved in a solution through the formation of stable complexes. The uranium concentration and isotopic ratios in the sample can rapidly be determined by measuring the radioactivity of the adsorbed uranium on the analytical disc using alpha-particle spectrometry. The chemical structure and elemental composition of the fabricated disc were analyzed by XPS, and the adsorption properties were evaluated as functions of pH of a sample solution, reaction time, and adsorbate concentration, as well as reusability and selectivity, using alpha-particle spectrometry, ICP-OES, and ICP-MS. An analytical method was developed based on these properties and validated with prepared uranium solutions by assessing the chemical recovery yield, relative error, and relative standard deviation. The developed method is expected to be used for on-the-spot uranium analysis.
KW - Alpha-particle spectrometry
KW - Environmental monitoring
KW - On-the-spot analysis
KW - Radioactivity measurement
KW - Uranium isotope analysis
UR - http://www.scopus.com/inward/record.url?scp=85109128222&partnerID=8YFLogxK
U2 - 10.1016/j.jece.2021.105983
DO - 10.1016/j.jece.2021.105983
M3 - Article
AN - SCOPUS:85109128222
VL - 9
JO - Journal of Environmental Chemical Engineering
JF - Journal of Environmental Chemical Engineering
SN - 2213-3437
IS - 5
M1 - 105983
ER -