示差扫描量热法测定防老剂D纯度的不确定度评定  

Evaluation of uncertainty of the purity of antioxidant D measured by differential scanning calorimetry

作　　者：陈青[1] 魏伯荣[1] 包德君[1] 尹德忠[1] 

机构地区：[1]西北工业大学理学院应用化学系,西安710072

出　　处：《分析仪器》2007年第3期49-52,共4页Analytical Instrumentation

基　　金：国防科工委军工计量"十五"计划重点项目(任务号:J142001A001)。

摘　　要：建立了示差扫描量热法(DSC)测定防老剂D纯度的数学模型并推导出不确定度计算公式;通过对公式中各变量的分析,计算了各变量的不确定度,最后计算出合成不确定度。A mathematical model was established for the measurement of the purity of antioxidant D by DSC and a formula was deduced for the calculation of uncertainty. The uncertainty of each component was calculated through analyzing various variables of the formula. Finally, the combined uncertainty of the purity of antioxidant D was obtained by synthesizing the uncertainties of various components.

关 键 词：示差扫描量热法 防老剂D 纯度 不确定度 

分 类 号：TH83[机械工程—仪器科学与技术]