纺织品中富马酸二甲酯测定的不确定度评定

Estimation of uncertainties in determination of dimethyl fumarate in textiles

依据GB/T 26713—2011《鞋类化学试验方法富马酸二甲酯的测定》,采用超声波萃取和气相色谱-质谱(GC-MS)联用法对鞋类纺织材料中富马酸二甲酯含量进行测定。分析了鞋类纺织材料中富马酸二甲酯测定过程的不确定度的来源,并对不确定度各个分量进行评定、合成,给出了该方法测定结果的合成不确定度和扩展不确定度,通过评定不确定度保证了分析测量的有效性。

According to GB/T 26713-2011 footwear-chemical tests - Determination of dimethyl fumarate , dimethyl fumarate in textile materials of footwear is determined by ultrasonic extraction and GC-MS. The source of uncertainties in the whole process of the measurement is analyzed, each component of uncertainties is estimated and the combined and expanded uncertainties are given. The validity of this method is evaluated with the uncertainty estimation.