酚试剂分光光度法测定室内空气中甲醛含量的不确定度评定  

Phenol Reagent SpectrophotometryEvaluation of Uncertainty in Determination of Formaldehyde Content in Indoor Air

作　　者：王海娜 陈文 齐明阳 WANG Haina;CHEN Wen;QI Mingyang(Liaoning Institute of Product Quality Supervision and Inspection,Shenyang 110000,China)

机构地区：[1]辽宁省产品质量监督检验院,辽宁沈阳110000

出　　处：《品牌与标准化》2023年第3期85-88,共4页

摘　　要：本文使用酚试剂分光光度法对空气中的甲醛含量进行测定,并对该方法的不确定度进行分析,计算样品测量重复性、采样体积、检测设备、检测过程中所使用的计量器具、标准溶液的配置所带来的不确定,合并得出该方法的扩展不确定度。评定结果表明:某处住宅空气中甲醛含量的不确定度报告为(0.055±0.002)mg/m^(3),k=2,方法不确定度主要来源于样品重复测定与标准曲线的配置。Determination of Formaldehyde in the air using phenol reagent Spectrophotometer,the uncertainty of the method is analyzed.Calculation of sample measurement repeatability,sample volume,detection equipment,used in the detection process of measuring instruments,standard solution configuration caused by the uncertainty,the expanded uncertainty of the method is obtained.The result shows that the uncertainty report of Formaldehyde content of indoor Formaldehyde is(0.055±0.002)mg/m^(3),k=2.The uncertainty of the method mainly comes from the repeated determination of samples and the configuration of standard curve.

关 键 词：甲醛 分光光度法 不确定度评定 

分 类 号：X831[环境科学与工程—环境工程] O657.3[理学—分析化学]