称量法制备气体标准物质称量不确定度评定的简化方法  

A simplified method to evaluate the weighing uncertainty of gas standard materials prepared by weighing method

作　　者：潘义[1] 王彧婕[1] 张丹[1] 代妍[1] 

机构地区：[1]中国测试技术研究院,四川成都610021

出　　处：《化学研究与应用》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)

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.

关 键 词：称量法 气体标准物质 微分 不确定度 

分 类 号：O659[理学—分析化学]