气相色谱法测定浓香型白酒中己酸乙酯不确定度的评定

Gas Chromatographic Method Was Used to Determine the Evaluation of the Uncertainty of Ethyl Hexylate

分析了气相色谱法检测白酒中己酸乙酯的含量,确定了各个不确定度分量值,得出浓香型白酒中己酸乙酯含量的测量结果的不确定度主要来源于取内标用的吸量管、气相色谱仪以及稀释标准溶液用的吸量管等因素。其余部分占的比例比较少,在实际检测评定中可以予以忽略。最终得出白酒中己酸乙酯测定的扩展不确定度。为试验室在该项目检测过程中进一步提高检测数据的可靠性和一致性作参考。

Liquor gas chromatography detection is analyzed, the content of ethyl caproate in determining the value of the uncertainty components, it is concluded that ethyl caproate content in luzhou-flavor liquor of the uncertainty of measured results mainly comes from inside take BiaoYong pipette, gas chromatograph and dilution of standard solution with a pipette and other factors.The rest accounted for the proportion of less, in the actual detection can be neglected in the evaluation.Finally it is concluded that liquor in expanded uncertainty for the determination of ethyl caproate.For laboratory testing in the project process to further improve the reliability of testing data and consistency for reference.