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UF_4在核燃料中居主要地位,需严格控制产品中的杂质含量。文献报道可用中子活化、质谱、光谱法等。本文选用近年来发展较快的萃取色层分离法进行铀基体的分离。将UF_4试样转化处理成硝酸铀酰料液后,经过聚三氟氯乙烯-磷酸三丁酯(F_3-TBP)色层柱萃取色层分离除去料液中的全部铀基体,采用电感耦合等离子体直读光谱法(ICP-AES)对流出液进行分析。对UF_4进行了多次分析,取得了较为满意结果。试验部分
UF_4 occupies a major place in nuclear fuel, and the content of impurities in the product needs to be strictly controlled. Literature reports available neutron activation, mass spectrometry, spectroscopy and so on. In this paper, the rapid development of extraction chromatography in recent years, uranium matrix separation. UF_4 sample was transformed into uranyl nitrate solution, and then all the uranium matrix in the feed solution was separated by chromatography on a polychlorotrifluoroethylene-tributyl phosphate (F_3-TBP) chromatography column. Inductively coupled plasma The effluent was analyzed by bulk direct reading spectroscopy (ICP-AES). UF_4 conducted a number of analysis, and achieved more satisfactory results. Experimental part