氧化还原滴定法测定亚硝酸钠纯度及不确定度评定
wf（2022）
Abstract
为获得亚硝酸钠纯度不确定度,研究了 GUM法用于氧化还原滴定法中亚硝酸钠纯度不确定度的评定方法.通过数学模型分析得到亚硝酸钠纯度的不确定度分量.经不确定度评定,氧化还原滴定法测定亚硝酸钠纯度为(99.5±0.5)％,k=2.
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