电感耦合等离子体原子发射光谱法测定锆合金中铁含量的不确定度评定  

Evaluation of uncertainty in determination of iron content in zirconium alloy by inductively coupled plasma atomic emission spectrometry

作　　者：唐荣涛 李维敏 惠泊宁 李金山[2] 陈彪 李帆 TANG Rongtao;LI Weimin;HUI Boning;LI Jinshan;CHEN Biao;LI Fan(Xi'an Western Energy Material Technologies Co,Ltd.,Xi'an 710299,China;School of Materials Science and Engineering,Northwestern Polytechnical University,Xi'an 710072,China)

机构地区：[1]西安西部新锆科技股份有限公司,西安710299 [2]西北工业大学材料学院,西安710072

出　　处：《化学分析计量》2025年第2期119-124,共6页Chemical Analysis And Meterage

基　　金：国家自然科学基金项目(U2067217)。

摘　　要：依据JJF 1059.1—2012《测量不确定度评定与表示》、CNAS-GL006:2019《化学分析中不确定度的评估指南》不确定度的评定方法,对电感耦合等离子体原子发射光谱法测定锆合金中铁含量的不确定度来源进行分析,建立数学模型,分别计算测定过程中引入的不确定度。经计算锆合金SRM 360b中铁含量为(0.215 3±0.003 4)%,k=2。结果表明,不确定度主要来源为样品重复性测定引入的不确定度,而系列标准工作溶液配制和样品溶解引入的不确定度分量较小。According to JJF 1059.1—2012"Evaluation and Representation of Measurement Uncertainty"and CNAS-GL006:2019"Guidelines for the Evaluation of Uncertainty in Chemical Analysis",the sources of uncertainty in the determination of iron content in zirconium alloys by inductively coupled plasma optical emission spectrometry were analyzed.A mathematical model was established to calculate the uncertainties introduced during the determination process.The calculated iron content in SRM 360b of zirconium alloy was(0.2153±0.0034)%,k=2.The results showed that the main sources of uncertainty were those introduced by csample repeatability determination,while uncertainties introduced by the preparation of series standard working solutions and sample dissolution were relatively small.

关 键 词：不确定度 锆合金 铁 电感耦合等离子体原子发射光谱法 

分 类 号：O657.31[理学—分析化学]