Sr-resin을 이용한 해수 중 90Sr 신속분석법 연구
A Study on the Rapid Screening Analysis for 90Sr in Seawater Using Sr-resin
3
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
By using Sr-resin, the author supplemented weaknesses of the existing analyticalmethod and conducted a test to minimize chemical procedures. Considering the maximumcapacity of Sr-resin, the author applied one liter of seawater as a sample. The chemical separationprocedure for this study was divided into three stages, which are hydroxide procedure, carbonateprocedure and Sr-resin procedure. The recovery rates per stage through measurement of 85Srwere 97.0±1.3% for hydroxide procedure, 86.6±2.2% for carbonate procedure and 85.3±1.8%for Sr-resin procedure, which are excellent values. In order to verify the analytical method,90Sr was introduced to the sample, followed by separation and refinement of 90Sr by using thesame method. It was followed by measurement via a liquid scintillation counter. Based on theverification, the accuracy rate was high and within ±5% of relative error while MDA was 0.0103Bq·L-1. The analytic procedure took one or two days covering LSC measurement. In comparisonwith the fuming nitric acid method, the period necessary for analyses can be 27 days shorter. Thestrength also includes higher accuracy of analyses by confirming and analysing the spectrum areaof 90Sr through LSC measurement.
Abstract
By using Sr-resin, the author supplemented weaknesses of the existing analyticalmethod and conducted a test to minimize chemical procedures. Considering the maximumcapacity of Sr-resin, the author applied one liter of seawater as a sample. The chemical separationprocedure for this study was divided into three stages, which are hydroxide procedure, carbonateprocedure and Sr-resin procedure. The recovery rates per stage through measurement of 85Srwere 97.0±1.3% for hydroxide procedure, 86.6±2.2% for carbonate procedure and 85.3±1.8%for Sr-resin procedure, which are excellent values. In order to verify the analytical method,90Sr was introduced to the sample, followed by separation and refinement of 90Sr by using thesame method. It was followed by measurement via a liquid scintillation counter. Based on theverification, the accuracy rate was high and within ±5% of relative error while MDA was 0.0103Bq·L-1. The analytic procedure took one or two days covering LSC measurement. In comparisonwith the fuming nitric acid method, the period necessary for analyses can be 27 days shorter. Thestrength also includes higher accuracy of analyses by confirming and analysing the spectrum areaof 90Sr through LSC measurement.
참고문헌 (16)
- Bojanowski R, "Determination of low level 90Sr in environmental samples: a novel approach to the classical method", J. Radioanal. Nucl. Chem, 138(2), pp.207~218 (1990)
- Budnitz RJ, "Instrumentation for Environmental Monitoring" (1983), Lawrence Berkeley Laboratory
- Casacuberta N, "90Sr and 89Sr in seawater off Japan as a consequence of the Fukushima Dai-ichi nuclear accident", Biogeosciences, 10(6), pp.3649~3659 (2013)
- Chen JP, "Batch and continuous adsorption of strontium by plant root tissues", Bioresour. Technol, 60(5), pp.185~189 (1997)
- Grahek Z., "Determination of radioactive strontium in seawater", Anal. Chim. Acta, 534(2), pp.271~279 (2005)
- Horwitz EP, "Co-relation of the extraction of strontium nitrate by a crown ether with the water content of the organic phase", Solvent Extr. Ion Exc, 8(1), pp.199~208 (1990)
- Horwitz EP, "A Novel Strontium-Selective Extraction Chromatographic Resin", Solvent Extr. Ion Exc, 10(2), pp.25~37 (1992)
- 정윤희, "Sr resin을 이용한 방사성 스트론튬 분리의 최적화", Journal of Nuclear Fuel Cycle and Waste Technology, 13(2), pp.123~130 (2015), 한국방사성폐기물학회[DOI]
- Kim HC, "Automated extraction chromatographic radionuclide separation system for analysis of 90Sr in seawater", Talanta, 217, pp.121055~ (2020)
- Kramer GH, "Isolation of strontium-90, yttrium-90, promethium-147 and cerium-144 from wet ashed urine by calcium oxalate coprecipitation and sequential solvent extraction", Anal. Chem, 54(8), pp.1428~1431 (1982)
- Lee GJ, "A Study on the Environmental Radioactive Strontium Analysis", J. Korean Asso. Radiat. Rrot, 24(3), pp.155~160 (1999)
- Maxwell SL, "Rapid determination of radiostrontium in seawater samples", J. Radioanal. Nucl. Chem, 298(2), pp.867~875 (2013)
- Mikulaj V, "Radiochemical analysis of 90Sr in milk, soil and plants by solvent extraction", J. Radionanal. Nucl. Chem, 175(4), pp.317~324 (1993)
- "Sr Resin Technical Data"[URL]
- Tayeb M, "Rapid and simultaneous determination of Strontium-89 and Strontium-90 in seawater", J. Environ. Radioact, 153, pp.214~221 (2016)
- Vajda N, "Determination of radiostrontium isotopes: A review of analytical methodology", Appl. Radiat. Isot, 68(12), pp.2306~2326 (2010)