摘要
A bread-and-butter model was proposed to evaluate the weighing uncertainty of gas standard materials by combining the preparation principles of gas standard materials by using weighing method with the differential algorithms of multivariate function.The model was applied to calculate the content of CO in 10 μmol/mol CO standard materials prepared by weighing method and to evaluate its weighing uncertainty.The evaluation processes are simple and the result is reasonable.This modle is suitable for the evaluation of the uncertainty of gas standard materials in industrial processes.
A bread-and-butter model was proposed to evaluate the weighing uncertainty of gas standard materials by combining the preparation principles of gas standard materials by using weighing method with the differential algorithms of multivariate function.The model was applied to calculate the content of CO in 10 μmol/mol CO standard materials prepared by weighing method and to evaluate its weighing uncertainty.The evaluation processes are simple and the result is reasonable.This modle is suitable for the evaluation of the uncertainty of gas standard materials in industrial processes.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2010年第5期656-659,共4页
Chemical Research and Application
基金
国家科技基础条件平台建设项目(2005DKA21501)
关键词
称量法
气体标准物质
微分
不确定度
weighing method
gas standard material
differential algorithm
uncertainty
