摘要
采用分析测量重复性、解吸效率、标准溶液配制、气相色谱仪等各分量不确定度的方法,计算溶剂解吸-气相色谱法测定工作场所空气中三氯乙烯的不确定度。结果表明,此方法的扩展不确定度Urel=0.072,k=2,通过对各分量不确定度的评定,得出标准溶液配制过程对不确定度贡献最大。
The uncertainty for determining trichloroethylene in air of the workplace by the solvent desorption-gas chromatography was calculated by analyzing the uncertainty of each component including the measurement repeatability,the desorption efficiency,the preparation of standard solution and the gas chromatograph.The results show that the expanded uncertainty of this method Urel=0.072,k=2.By evaluating the uncertainty of each component,it is concluded that the preparation process of standard solution has the maximum contribution to the uncertainty.
作者
邵春霞
赵浩
李玉柱
Shao Chunxia;Zhao Hao;Li Yuzhu(Hebei Ruitian Occupational Hazard Detection Co.,Ltd.,Shijiazhuang 050000,China;Military Representative Office of Air Force Equipment Department in Shijiazhuang Region,Shijiazhuang 050000,China)
出处
《化学推进剂与高分子材料》
CAS
2020年第3期71-73,共3页
Chemical Propellants & Polymeric Materials
