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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 37, Number 9
JKCSEZ 37(9)
June 20, 1993

Title	Determination of the Trace Elements in UO2 Powder by ICP-AES Directyl Coupled with Extraction Chromatography 추출크로마토그래피와 유도결합플라스마 원자방출분광법을 이용한 이산화우라늄분말 중 미량금속불순물 분석
Author	Kwang-Soon Choi, Chang-Heon Lee, Hyung-Yeal Pyo, Sun-Ho Han, Moo-Yul Suh, Tae-Yoon Eom, Gae-Ho Lee 최광순, 이창헌, 표형렬, 한선호, 서무열, 엄태윤, 이계호
Keywords
Abstract	UO2 분말에 미량함유되어 있는 금속불순물들을 신속하게 정량하고 분석과정에서 발생되는 폐액의 양을 줄이기 위하여, 우라늄용액으로부터 미량금속불순물들을 분리함과 동시에 ICP-AES로 분석할 수 있는 장치를 구성하였다. 미량금속불순물들을 분리하기 위하여, 폴리에틸렌으로 제작한 분리컬럼(내경 : 0.7 cm 길이 : 7 cm)에 TBP(tri-n-butyl phosphate)를 입힌 테프론 분말(약 330 μm)을 충진하고, 분리컬럼의 출구를 ICP-AES의 시료주입구에 연결시켰다. UO2 분말에 미량 함유되어 있는 몰리브덴을 비롯한 11개 원소를 분리와 동시에 정량할 수 있었으며, 이들 원소들에 대한 회수율은 용매추출법에서와 거의 동일한 91∼110%로서 핵연료 제조공정의 품질관리에 적용이 가능하였다. An ICP-AES system directly connected with a separation column was used in order to determine the trace elements in UO2 powder promptly and reduce the volume of the waste solution. The outlet of a separation column, which was filled with Teflon powder (330 μm) coated with tri-n-butyl phosphate (TBP) as extractant, was directly connected with sample injection tube of ICP-AES. Eleven elements including molybdenum in UO2 powder were separated and determined simultaneously. Recoveries of these elements were 91∼110% and these results were agreed with those of solvent extraction methods. This method was applicable to quality control in manufacturing nuclear fuel.
Page	813 - 819
Full Text	PDF

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