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电感耦合等离子体发射光谱法测定多金属矿中铌的不确定度分析

Wei Lina,Wang Fang,Li Hongye, Liang Chuntao,Zhang Shuzhen,Liang Zushun, Chen Ge,Li Huizhen

Industrial Technology Innovation(2014)

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Abstract
电感耦合等离子体发射光谱测定多金属矿中的铌,对测定结果进行不确定度评定。分析了不确定度的重要来源,样品称量引入的不确定度、标准物质测量的不确定度,以及仪器重复测量的不确定度。提供了引入不确定度各参数的采集和计算方法,对各不确定度分量进行分析计算,最后合成不确定度,在置信概率为95%的扩展因子为2,得到测量结果的扩展不确定度。
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Key words
Uncertainty evaluation,Inductively coupled plasma atomic emission spectrometry,Niobium,Polymetallic ore
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