Dynamic ion exchange chromatography for determination of number of fissions in thorium-uranium dioxide fuels
Dynamic ion exchange chromatography for determination of number of fissions in thorium-uranium dioxide fuels
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动态离子交换色谱法测定钍二氧化铀燃料中的裂变数
DOI：
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发表时间：
1984
期刊：
影响因子：
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通讯作者：
L. W. Green
中科院分区：
文献类型：
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作者：
C. H. Knight;R. Cassidy;B. M. Recoskie;L. W. Green
已经检查了高效液相色谱法和使用 /sup 138/La 作为裂变监测器来确定 (Th, U)O/sub 2/ 燃料中的裂变数和燃耗。辐照燃料溶液中的裂变产物/sup 139/La 在用 1-辛烷磺酸盐动态改性的反相上分离，并通过“在线”柱后反应系统监测洗脱的金属离子。 1 个月内 13 种燃料溶液中镧峰高度的相对标准偏差为 0.96%，HPLC 燃耗结果与标准质谱技术获得的结果之间的一致性在 0.1% 以内；确定裂变次数的最大不确定性来源是与裂变产额值相关的不确定性。还对该色谱系统的其他用途进行了简要研究。 24 篇参考文献、3 张图、1 个表格。
High-performance liquid chromatography and the use of /sup 138/La as a fission monitor have been examined for the determination of the number of fissions and burnup in (Th, U)O/sub 2/ fuels. The fission product /sup 139/La in a solution of irradiated fuel was separated on a reversed phase dynamically modified with 1-octanesulfonate, and the eluted metal ions were monitored by an 'on-line' postcolumn reaction system. The relative standard deviation of the peak heights for lanthanum in 13 fuel solutions over a 1 month period was 0.96%, and the agreement between the HPLC burnup results and those obtained by standard mass spectrometric techniques was within 0.1%; the largest source of uncertainty for the determination of the number of fissions was that associated with fission yield values. Other uses of this chromatographic system were also examined briefly. 24 references, 3 figures, 1 table.