烟草科技Issue(8)：29-33,39,6.
连续流动法测定烤烟总植物碱的不确定度
Uncertainty in Determination of Total Alkaloids in Flue-cured Tobacco with Continuous Flow Method
摘要
Abstract
In order to evaluate the uncertainty in the determination of total alkaloids in flue-cured tobacco with continuous flow method, the cause-effect relationship diagram in the determination was revised and a new mathematical model for measurement uncertainty assessment was set up by analyzing the whole measurement process. The sources of measurement uncertainty, sample concentration and measurement repeatability of autoanalyzer were determined. The results showed that: the measurement uncertainty mainly come from the moisture content in sample. The standard uncertainty of measurement results was 0.05% , and the expanded uncertainty (α=0.05,k=2) was 0.10%.关键词
连续流动法/烤烟/总植物碱/不确定度/评定Key words
Continuous flow method/Flue-cured tobacco/Total alkaloid/Uncertainty/Assessment分类
轻工纺织引用本文复制引用
张威,王颖,唐纲岭,闪红光,徐如彦,王晓春,范国民..连续流动法测定烤烟总植物碱的不确定度[J].烟草科技,2012,(8):29-33,39,6.基金项目
国家烟草专卖局标准项目“烟草及烟草制品连续流动法测定常规化学成分测量不确定度评定指南”(2009B005). （2009B005）
