分光光度法测定PET中二氧化钛含量的不确定度评定
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摘要
对分光光度法测定PET中钛含量的不确定度来源如重复性测定引入的不确定度分量u1,称量样品时引入的不确定度分量u2;m1测定引入的不确定度分量u3进行分析,并对相应的不确定度分量进行评定。计算各分量的标准不确定度、合成标准不确定度和扩展不确定度。
In this paper,the sources of uncertainty such as the uncertainty component u1 introduced by the repeatability measurement,the uncertainty component u2 introduced when the sample is weighed,and the uncertainty component u3 introduced by the measurement of m1 in the determination of titanium content in PET by spectrophotometry are analyzed,and the corresponding uncertainty components are evaluated. The standard uncertainty,synthetic standard uncertainty and expanded uncertainty of each component are calculated.
In this paper,the sources of uncertainty such as the uncertainty component u1 introduced by the repeatability measurement,the uncertainty component u2 introduced when the sample is weighed,and the uncertainty component u3 introduced by the measurement of m1 in the determination of titanium content in PET by spectrophotometry are analyzed,and the corresponding uncertainty components are evaluated. The standard uncertainty,synthetic standard uncertainty and expanded uncertainty of each component are calculated.
引文
[1]JJF 1059.1-2012,测量不确定度评定与表示[S].
[2]GB/T 14190-2008,纤维级聚酯切片(PET)试验方法[S].
[3]王约伯,高敏.有机元素微量定量分析[M].北京:化学工业出版社,2013.
[4]JJG 196-2006,常用玻璃量器检定规程[S].
[5]袁秉鉴.光度法不确定度的数学模型[J].计量技术,2010,54(1):67-70.
[6]CNAS-GL06,化学分析中不确定度的评估指南[S].
[2]GB/T 14190-2008,纤维级聚酯切片(PET)试验方法[S].
[3]王约伯,高敏.有机元素微量定量分析[M].北京:化学工业出版社,2013.
[4]JJG 196-2006,常用玻璃量器检定规程[S].
[5]袁秉鉴.光度法不确定度的数学模型[J].计量技术,2010,54(1):67-70.
[6]CNAS-GL06,化学分析中不确定度的评估指南[S].