电感耦合等离子体发射光谱法测定五氧化二钒中氧化钾和氧化钠含量的不确定度评定  

Uncertainty evaluation in the determination of Potassium oxide and Sodium oxide in Vanadium(V)oxide by Inductively coupled plasma atomic emission spectrometry

作　　者：王勇 杨涛 李国伟 邵国庆 WANG Yong;YANG Tao;LI Guowei;SHAO Guoqing(National Quality Supervision and Testing Center of Vanadium and Titanium Products&Panxi Institute of Vanadium and Titanium Inspection and Testing,Panzhihua Sichuan,617000,China)

机构地区：[1]国家钒钛制品质量检验检测中心/攀西钒钛检验检测院,四川攀枝花617000

出　　处：《质量安全与检验检测》2023年第4期72-75,102,共5页QUALITY SAFETY INSPECTION AND TESTING

摘　　要：本文对电感耦合等离子发射光谱法测定五氧化二钒中氧化钾、氧化钠的不确定度来源进行了详细分析,对测定过程中的主要不确定度进行了合理的评定,包括样品称量引入的不确定度、校准曲线引入的不确定度、容量瓶和移液管体积引入的不确定度以及测量的重复性和仪器引入的不确定度,通过建立数学模型,对各不确定分量进行评估量化,计算合成不确定度和扩展不确定度。结果显示,当置信概率为95%,包含因子为2时,样品中氧化钾含量为0.13%时,其扩展不确定度为0.02%,氧化钠的含量为1.06%时,其扩展不确定度为0.06%。The sources of uncertainty in the determination of Potassium oxide and Sodium oxide in Vanadium(V)oxide by inductively coupled plasma atomic emission spectrometry were analyzed in detail,By establishing a mathematical model,each uncertainty component is evaluated and quantified,and the combined uncertainty and expanded uncertainty are calculated.The results show that when the confidence probability is 95%,the coverage factor is 2,the expanded uncertainty is 0.02%when the content of Potassium oxide in the sample is 0.13%,and the expanded uncertainty is 0.06%when the content of Sodium oxide is 1.06%.

关 键 词：计量学 电感耦合等离子发射光谱法 五氧化二钒 不确定度 

分 类 号：U698[交通运输工程—港口、海岸及近海工程]