ATDS-GCMS法测量车内空气中苯的不确定度分析  

Analysis of Measurement Uncertainty of Benzene in Air inside Car by ATDS-GCMS

作　　者：汪昭玮 孙大顺 孙一峰[2] 马继 WANG Zhao-wei;SUN Da-shun;SUN Yi-feng;MA Ji(GAC NIO New Energy Automotive Technology Co.,Ltd.,Guangdong Guangzhou 511400;Guangdong Province Automotive Materials Environmental Performance Testing and Evaluation Engineering Technology Research Center,Guangdong Institute of Analysis,Guangdong Guangzhou 510070,China)

机构地区：[1]广汽蔚来新能源汽车科技有限公司,广东广州511400 [2]广东省测试分析研究所,广东省汽车材料环保性能检测与评价工程技术研究中心,广东广州510070

出　　处：《广州化工》2019年第24期117-119,124,共4页GuangZhou Chemical Industry

基　　金：广东省科学院实施创新驱动发展能力建设专项(No:2018GDASCX-0104)

摘　　要：依据HJ/T 400-2007《车内挥发性有机物和醛酮类物质采样测定方法》中苯的检测方法,通过热脱附/毛细管气相色谱/质谱联用(ATDS-GCMS)分析,对车内空气中苯的释放量进行研究,根据《测量不确定度评定与表示指南》的要求,系统分析了整个检测过程中不确定度来源,对各不确定度分量进行量化,对苯的测量不确定度进行评定,为实验室在该检测过程中进一步提高检测数据的可靠性和一致性。According to HJ/T 400-2007 Method for the Determination of Volatile Organic Compounds and Aldehydes and Ketones in Vehicles,the method for detecting benzene was analyzed by thermal desorption/capillary gas chromatography/mass spectrometry(ATDS-GCMS).The amount of benzene released in the air was studied.According to the requirements of the Guide for Evaluation and Representation of Measurement Uncertainty,the source of uncertainty in the whole process was analyzed systematically,and the uncertainty components were quantified.The measurement uncertainty of benzene was evaluated to further improve the reliability and consistency of the test data in the laboratory.

关 键 词：ATDS-GCMS 汽车 车内空气质量 苯 不确定度 

分 类 号：U467.1[机械工程—车辆工程]