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  • 09월 08일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제116회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Quantitative analysis of nuclear materials in ultra-trace levels using thermal ionization mass spectrometry and its application to particle analysis

2015년 8월 17일 19시 08분 14초
ANAL2-4 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
금 10시 : 10분
분석화학 - Material Sciences in Analytical Chemistry
저자 및
박종호*, 송규석, 임상호
한국원자력연구원 원자력화학연구부, Korea
A highly accurate and precise quantitative analysis of nuclear materials in ultra-trace levels plays an essential role in monitoring undeclared nuclear activities of corresponding facilities. Isotope dilution mass spectrometry coupled with thermal ionization mass spectrometry (ID-TIMS) was utilized to develop the analytical techniques and procedure for bulk analysis. The procedure is initiated with sample recovery by complete combustion of a sample and followed by dissolution of the recovered nuclear materials with nitric acid. Uranium (U) and plutonium (Pu) in the solution were separated with high purity by sequential ion chromatography using UTEVA resin. The quantities of U and Pu were determined by the isotopic measurements of TIMS and the amounts of reference materials added into solution as spikes. The analytical results for the nuclear materials in a simulated sample, which was prepared by blending known amounts of U and Pu reference materials, were in good agreement with the certified values. ID-TIMS was also applied to determine both of the quantity and the isotopic ratios of uranium in a micro-particles simultaneously. The verification of the application was performed using U030 particles