卷烟主流烟气中氰化氢测定的不确定度  

Uncertainty in Determination of Hydrogen Cyanide in Mainstream Cigarette Smoke

作　　者：潘晓薇[1] 

机构地区：[1]广东中烟工业有限责任公司,广东广州510385

出　　处：《广东化工》2014年第15期242-244,共3页Guangdong Chemical Industry

摘　　要：为了结合实验室自身情况提高测量结果的准确性,连续流动分析法测定卷烟主流烟气中氰化氢的测量不确定度进行评定。通过建立测量不确定度评定的数学模型,分析对氰化氢含量检测可能会造成误差的因素,为测量结果提供了可信度和可信区间。结果表明:测量结果的标准不确定度为1.62μg/支,在95%的置信度下,取包含因子为k=2,其扩展不确定度为3.24μg/支。In order to improve the accuracy of test results, the uncertainty for determination of hydrogen cyanide in mainstream cigarette smoke by the continuous flow method was analyzed and evaluated. The mathematical model for measurement uncertainty assessment was established and the sources of uncertainty were identified. The influence factors on the uncertainty determination of hydrogen cyanide content were analyzed, the component and combined uncertainties were calculated, and the expanded uncertainty was 3.24 μg/cig.

关 键 词：主流烟气 氢氰酸 连续流动分析 不确定度 

分 类 号：O65[理学—分析化学]