过氧化氢光度法测定高铝质耐火材料中二氧化钛的含量不确定度的评定  

Uncertainty Assessment for Titanium Dioxide Content of High Alumina Refractories by Hydrogen Peroxide Spectrophotometry

作　　者：刘会永[1] 魏春阳 Liu Huiyong;Wei Chunyang(Wuhan Research Institute of Metallurgy Construction Co., Ltd of MCC Group, Wuhan 430081, China)

机构地区：[1]中冶武汉冶金建筑研究院有限公司,湖北武汉430081

出　　处：《广东化工》2018年第12期232-232,234,共2页Guangdong Chemical Industry

摘　　要：通过建立数学模型来分析不确定度的来源主要有:试验重复性引入的不确定度、称量过程引入的不确定度、定容过程引入的不确定度、分光光度计测得吸光度的不确定度、标准系列溶液的不确定度,并对不同来源的不确定度列式计算得出其各自的相对不确定度,最后合成计算其综合不确定度。The main sources of uncertainty analyzed by mathematical model are uncertainty brought by test repeatability, weighing process, constant volume process, and uncertainty of absorbance measured by spectrophotometer, uncertainty of standard series solution. Furthermore, the relative uncertainty was formulation calculated via various sources of uncertainty respectively, and the overall uncertainty was synthetically calculated at the last.

关 键 词：光度法 不确定度 评定 

分 类 号：O65[理学—分析化学]