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首页> 外文期刊>Journal of chromatography, A: Including electrophoresis and other separation methods >Development of a fast and efficient analytical technique for the isotopic analysis of fission and actinide elements in environmental matrices
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Development of a fast and efficient analytical technique for the isotopic analysis of fission and actinide elements in environmental matrices

机译:开发环境基质中裂变和散落元素同位素分析的快速有效分析技术

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An automated separation-direct analysis scheme has been developed to determine both the concentration and isotopic composition of a suite of elements down to the low picogram level in a complex silicon-based matrix. With the ultimate goal of performing rapid analysis of materials with non-natural isotopic compositions, RAPID (Rapid Analysis of Post-Irradiation Debris) consists of a high-pressure ion chromatography system directly coupled to an inductively coupled plasma mass spectrometer. The RAPID method achieves matrix exclusion and direct online analysis of the elementally separated components, yielding precise isotopic compositions for up to 40 elements in less than one hour per sample. When combined with isotope dilution, this approach shows the potential to yield elemental concentrations with low uncertainties, providing a rapid analytical method that encompasses group I and II metals, transition metals, refractory metals, platinum group metals, lanthanides, and actinides. The method development, robustness, sensitivity, uncertainties, and potential applications in nuclear and environmental measurements will be discussed in this paper. (C) 2018 Elsevier B.V. All rights reserved.
机译:已经开发了一种自动分离 - 直接分析方案以在复杂的硅基基质中确定将一套元素的浓度和同位素组合物确定为低微型光谱水平。随着对具有非天然同位素组合物的材料进行快速分析的最终目标,快速(对后照射碎片的快速分析)包括直接耦合到电感耦合等离子体质谱仪的高压离子色谱系统。快速方法达到基质排除和直接在线分析对基本分离的组分,在每样品的小于1小时内产生精确的同位素组合物。当与同位素稀释结合时,该方法表明,产生具有低不确定性的元素浓度的可能性,提供一种快速分析方法,包括I和II金属,过渡金属,耐火金属,铂族金属,镧系金属,镧系元素和抗原。本文将讨论核和环境测量中的方法开发,稳健,灵敏度,不确定性和潜在应用。 (c)2018年elestvier b.v.保留所有权利。

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