5-Br-PADAP光度法测钒钛磁铁矿中钒的不确定度评定

5-Br-PADAP光度法是测钒钛磁铁矿中钒的主要方法之一。根据其分析过程的操作步骤确定了其影响因素。建立数学模型，并根据数学模型把不确定度分解为称样质量、溶液含量、钒标准工作曲线和重复测定引入的各不确定度，对影响测量结果的各个分量进行了分析评定和计算。结果表明，钒的标准工作曲线的建立是影响样品分析误差的重要因素。

Uncertainty Evaluation of 5-Br-PADAP Photometric Method for Determination of Vanadium in Vanadium Titanium Magnetite

5-Br-PADAP photometric method determination of vanadium in vanadium titanium magnetite is one of main methods.According to the analysis process steps to determine its influence factors.In this evaluation measure in vanadium-titanium magnetite with vanadium uncertainty,in accordance with the analysis method to establish mathematical models,and according to the mathematical model of the uncertainty is decomposed into the sample quality into the solution concentration,vanadium,the standard working curve to establish and repeated measurement introduction of the uncertainty of measurement results,effects of the various components are analyzed assessment and calculation,finally gives the results of evaluation and report results analysis,put forward the vanadium standard working curve was established the influence of sample error analysis of important factors.