- P-ISSN 1225-0163
- E-ISSN 2288-8985
- 권한신청
- P-ISSN1225-0163
- E-ISSN2288-8985
- SCOPUS, ESCI, KCI
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Development of the rapid preconcentration method for determination of actinides in large volume seawater sample using Actinide resin
분석과학 / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2020, v.33 no.4, pp.186-196
https://doi.org/10.5806/AST.2020.33.4.186
(한국원자력연구원)
(Environmental Radioactivity Assessment Team, Korea Atomic Energy Research Institute)
(Environmental Radioactivity Assessment Team, Korea Atomic Energy Research Institute)
(Environmental Radioactivity Assessment Team, Korea Atomic Energy Research Institute)
(Environmental Radioactivity Assessment Team, Korea Atomic Energy Research Institute)
(Department of Environmental Engineering, Chung-Nam National University)
(Environmental Radioactivity Assessment Team, Korea Atomic Energy Research Institute)
(Environmental Radioactivity Assessment Team, Korea Atomic Energy Research Institute)
(Environmental Radioactivity Assessment Team, Korea Atomic Energy Research Institute)
(Environmental Radioactivity Assessment Team, Korea Atomic Energy Research Institute)
(Department of Environmental Engineering, Chung-Nam National University)
강유겸,
Ji-Young,
P.
,
Jong-Myoung,
L.
,
Mee,
J.
,
Hyuncheol,
K.
,
&
Jin-Hong,
L.
(2020). . 분석과학, 33(4), 186-196, https://doi.org/10.5806/AST.2020.33.4.186
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Abstract
A simple and rapid preconcentration method of actinide from seawater using Actinide resin was developed and tested with the seawater spiked with a known U and Th. The developed method of Actinide resin based on column chromatography is less time-consuming and requires less labor compared with a typical co-precipitation technique for preconcentration of actinides. U and Th, which are relatively weak-bonded with Actinide resin among actinides, were used to determine the optimum flow rate of seawater sample and evaluate the capacity of Actinide resin to concentrate actinides from seawater. A flow rate of 50 mL min−1 was available with Actinide resin 2 mL (BV, bed volume). When 5 or 10 L of seawater containing U were loaded on Actinide resin (2 mL, BV) at 50 mL min−1, the recovery of U was 93 % and 86 %, respectively. For extraction of actinides bound with Actinide resin, we compared three methods: solvent extraction, ashing-acid digestion, and ashingmicrowave digestion. Ashing-microwave digestion method shows the best performance of which is the recovery of 100 % for U and 81 % for Th. For the preconcentration of actinides in 200 L of seawater, a typical coprecipitation method requires 2-3 days, but the developed method in this study is achieved the high recovery of actinides within 12 h.
- keywords
- actinide resin, actinides, concentration, seawater, ICP-MS, microwave digestion
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