| 气相色谱测定食用酒精中正丙醇含量的不确定度分析 |
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| 引用本文： | 颜立毅,郑丽斯.气相色谱测定食用酒精中正丙醇含量的不确定度分析[J].农产品加工．学刊,2012(9):129-130,135. |
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| 作者姓名： | 颜立毅 郑丽斯 |
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| 作者单位： | 江门市质量计量监督检测所 |
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| 摘 要： | 通过对气相色谱法测量食用酒精中正丙醇含量的不确定度来源进行分析,并对其不确定度分量进行评定,得出该分析方法的测量不确定度为U=0.02 g/L,包含因子k=2。气相色谱法测定食用酒精中正丙醇的不确定度主要来自人员的重复操作和仪器的校准。因此在测试样品时,必须严格按照操作规范,并且使用合格的计量器具。
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| 关 键 词： | 气相色谱 正丙醇 不确定度 |
The Uncertainty Analysis of Determination of N-propanol in Edible Alcohol by Gas Chromatographic |
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| YAN Li-yi,ZHENG Li-si.The Uncertainty Analysis of Determination of N-propanol in Edible Alcohol by Gas Chromatographic[J].Nongchanpin Jlagong.Xuekan,2012(9):129-130,135. |
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| Authors: | YAN Li-yi ZHENG Li-si |
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| Institution: | (Jiangmen Supervision Testing Institute of Quality & Metrology,Jiangmen,Guangdong 529000,China) |
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| Abstract: | We analysis the uncertainty source of determination of n-propanol in edible alcohol by gas chromatographic,and count every component of uncertainty in measurement.We obtain the uncertainty of this method is U=0.02 g/L and the inclusion factor is k=2.The uncertainty of determination of n-propanol in edible alcohol by gas chromatographic mainly comes from personal repeat operation and instrument calibration.So we should strictly comply operation standards and use qualified measuring instruments when testing samples. |
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| Keywords: | gas chromatographic n-propanol uncertainty |
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