Analysis of Rare Earth Elements in Uranium Using Handheld Laser-Induced Breakdown Spectroscopy (HH LIBS)
Analysis of Rare Earth Elements in Uranium Using Handheld Laser-Induced Breakdown Spectroscopy (HH LIBS)
复制标题
使用手持式激光诱导击穿光谱 (HH LIBS) 分析铀中的稀土元素
DOI：
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发表时间：
2018
影响因子：
3.5
通讯作者：
Stephen P. Willson
中科院分区：
文献类型：
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作者：
Benjamin T. Manard;E. M. Wylie;Stephen P. Willson
便携式激光诱导击穿光谱（HH LIBS）仪器作为一种快速定性分析铀氧化物基体中稀土元素的方法进行了评估。本研究的动机是需要开发一种方法，在核设施中进行快速的在线化学分析，特别是提供快速的第一次通过分析，以确定是否需要采取额外的行动或测量。这将导致尽量减少处理和运输放射性材料和核材料以及随后暴露于相关危险的情况。在这项工作中，稀土元素（Eu，Nd和Yb）定量掺入铀氧化物粉末和HH LIBS仪器分析。该方法证明了在铀基质中快速鉴定亚百分比水平的元素成分的能力。初步的检测限（LOD）确定的值的百分之一的顺序。通过采用美国国家标准与技术研究所（NIST）标准参考物质（SRM）610和612（玻璃中的微量元素），探讨了该方法的有效性。确定HH LIBS方法能够清楚地辨别玻璃或铀基质中感兴趣的稀土元素。
A portable handheld laser-induced breakdown spectroscopy (HH LIBS) instrument was evaluated as a rapid method to qualitatively analyze rare earth elements in a uranium oxide matrix. This research is motivated by the need for development of a method to perform rapid, at-line chemical analysis in a nuclear facility, particularly to provide a rapid first pass analysis to determine if additional actions or measurements are warranted. This will result in the minimization of handling and transport of radiological and nuclear material and subsequent exposure to their associated hazards. In this work, rare earth elements (Eu, Nd, and Yb) were quantitatively spiked into a uranium oxide powder and analyzed by the HH LIBS instrumentation. This method demonstrates the ability to rapidly identify elemental constituents in sub-percent levels in a uranium matrix. Preliminary limits of detection (LODs) were determined with values on the order of hundredths of a percent. Validity of this methodology was explored by employing a National Institute of Standards and Technology (NIST) standard reference materials (SRM) 610 and 612 (Trace Elements in Glass). It was determined that the HH LIBS method was able to clearly discern the rare earths elements of interest in the glass or uranium matrices.