塑胶类样品中十溴二苯醚含量的不确定度分析

Evaluation on the Uncertainty in Determination of Decabromodiphenyl Ether in Plastic samples

多溴联苯醚类(PBDEs)化合物在塑胶类样品样品中含量,通过气相色谱-质谱联用法(GC-MS)测定,研究气相色谱-质谱联用法(GC-MS)测定塑胶类样品中十溴二苯醚(decaBDE)的不确定度。通过称量、样品前处理、定容、测试等过程,找出不确定度来源,计算不确定度分量,然后计算合成不确定度,并最终计算相对扩展不确定度。本文针对塑胶类样品中十溴二苯醚含量的测量示值误差评定不确定度,同时通过测量审核样品,将其与参考实验室的结果进行比较,得出|Z|≤2,则该测量审核结果为满意,验证此不确定度分析准确可靠。

The study is to evaluate the uncertainty in determination of Decabromodiphenyl Ether(decaBDE)in plastic sam⁃ples by gas chromatography-mass spectrometry(GC-MS).By the process of weighing,sample pretreatment,constant vol⁃ume,testing,find out the source of uncertainty,calculate the uncertainty component,and then calculate the synthesis uncer⁃tainty,finally calculate the relative extended uncertainty.This paper evaluates the uncertainty of the measurement error of the decabromodiphenyl ether(decaBDE)in the plastic samples,compares it with the results of the reference laboratory,and obtains|Z|≤2,then the measurement audit results are satisfactory.Verify that this uncertainty analysis is accurate and reliable.