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应用测量不确定度评定方法,分析溶剂解吸-气相色谱法测定活性炭管中正己烷含量测定过程中的不确定度来源,识别出主要不确定度来源。通过计算各不确定度分量的相对不确定度大小,得到合成相对不确定度,确定了扩展不确定度,并依据相对不确定度大小识别测定过程中的关键控制点。
The uncertainty of measurement method was used to analyze the source of uncertainty in the determination of n-hexane content in activated carbon tube by solvent desorption-gas chromatography, and identify the sources of major uncertainties. By calculating the relative uncertainty of each component of uncertainty, the relative uncertainty of synthesis is obtained, the extended uncertainty is determined, and the critical control points in the determination are identified according to the relative uncertainty.