皮革及其制品中富马酸二甲酯含量测定的不确定度评估

Uncertainty Estimate in the Determination of Dimethyl Fumarate in Leathers

依据标准SN/T 2446-2010对皮革中富马酸二甲酯的含量进行重复测定,对测试过程中的不确定度来源进行分析总结,且评估、合成了不确定度的主要分量,并给出了扩展不确定度。结果显示,标准工作液配制对不确定度的贡献最大;而标准工作液测量产生的不确定度最小。

Dimethyl fumarate in Leather was determined according to SN/T 2446： 2010. Dimethyl fumarate standard substance was used. The source of uncertainty in whole process was analyzed, and furthermore, every component of the uncertainty was evaluated and eompounded. The resuh shows that the uncertainty by preparation of standard working solution is the most important factor; the uncertainty of standard working solution measurement is the least important factor.