采用流动注射电感耦合等离子体质谱法测定尿液中的铀同位素比值：一种应急监测工具。
Uranium isotopic ratio determination in urine using flow-injection ICP-MS: a tool for emergency monitoring.
作者信息
Godoy Maria Luiza D P, Julião Ligia M Q C, Godoy José Marcus
机构信息
Instituto de Radioproteção e Dosimetria, Comissão Nacional de Energia Nuclear, Av. Salvador Allende s/n, CEP 22780-160 Rio de Janeiro, RJ, Brazil.
出版信息
Radiat Prot Dosimetry. 2009 Feb;133(4):234-9. doi: 10.1093/rpd/ncp027. Epub 2009 Mar 18.
An inductively coupled plasma mass spectrometry-based method is presented aimed at total uranium concentration and atomic ratio determination. The method includes flow-injection uranium separation based on TRU Eichrom extraction chromatographic cartridges. The method was tested with urine interlaboratorial exercise samples and certified reference materials (NBL-CRM-U020A and NBL-CRM-U050) providing reliable results. The proposed methodology was also applied to urine samples obtained after an incident at a nuclear facility. The obtained (235)U/(238)U and (234)U/(238)U atomic ratios in the urine of an exposed worker were equal to those observed for an enriched uranium solution from the same origin.
本文提出了一种基于电感耦合等离子体质谱法的方法，用于测定总铀浓度和原子比。该方法包括基于TRU Eichrom萃取色谱柱的流动注射铀分离。该方法通过实验室间尿液分析样品和标准参考物质（NBL-CRM-U020A和NBL-CRM-U050）进行测试，结果可靠。所提出的方法还应用于核设施事故后采集的尿液样本。在一名受辐射工人的尿液中测得的（235）U/（238）U和（234）U/（238）U原子比，与来自同一来源的浓缩铀溶液中观察到的原子比相同。
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