分光光度法测定室内空气中甲醛含量不确定度评定

Uncertainty Evaluation of Formaldehyde Content in the Indoor Air

对室内空气中甲醛含量分析测试过程的误差进行了辨别。在此基础上评定了分析结果的不确定度。不确定度主要来源于样品采集、样品处理、标准溶液、标准曲线制作以及其它仪器的使用。依据不确定度评定的步骤,分析和计算得到了各分量不确定度和合成不确定度。

The uncertainty of formaldehyde content in the indoor air was evaluated. Uncertainty for measuring formaldehyde in the indoor air results from sampling, sample pretreatment, standard solution, standard curve and the instrument and glassware used in the experiment. According to the process of the uncertainty evaluation,the uncertainty of components and the composed uncertainty were analyzed and calculated.