顶空-气相色谱法测定汽车内饰材料中挥发性有机物总量的不确定度评估  

Uncertainty evaluation for measurement of total volatile organic compound in auto interior material by head-space gas chromatography

作　　者：李昱霖 衣磊 柳旭 韩芸 朱欣桐 Li Yulin;Yi Lei;Liu Xu;Han Yun;Zhu Xintong(Changchun Product Quality Supervision and Inspection Institute, Changchun 130012 ,China;Changchun Special Equipment Inspection Institute ,Changchun 130033,China)

机构地区：[1]长春市产品质量监督检验院,长春130012 [2]长春特种设备检测研究院,长春130012

出　　处：《分析仪器》2018年第5期136-139,共4页Analytical Instrumentation

摘　　要：对顶空-气相色谱法测定汽车内饰材料中挥发性有机物总量(VOC)的不确定度进行评估。依据JJF1059.1—2012《测量不确定度评定与表示》和JJF 1135—2005《化学分析测量不确定度评定》相关规定,建立数学模型,分析不确定度的来源,对不确定度分量进行量化和合成,计算扩展不确定度。结果表明,汽车内饰材料中VOC总量为15μg C/g时,其扩展不确定度为1μg C/g(k=2)。According to the relevant regulations in Evaluation and Expression of Uncertainty in Measurement （JF 1059.1-2012） and Evaluation of Uncertainty in Chemical Analysis Measurement （JF 1135-2005） ,the mathematical model was established, the sources of uncertainty were analyzed, each component of uncertainty was quantified and combined. Experimental results showed that when the total volatile organic compound in auto interior material was 15μg C/g , the relative expanded uncertainty of measurement result was 1μg C/g（k= 2）.

关 键 词：不确定度 顶空气相色谱 汽车内饰材料 挥发性有机物 

分 类 号：O657.71[理学—分析化学] U465[理学—化学]