硫酸氧钛分光光度法测定水中过氧化氢的不确定度评定

Evaluation of uncertainty in the determination of hydrogen peroxide in water by titanium oxysulfate spectrophotometry

通过测定实验中的不确定度,对测量过程中各分量不确定度进行分析计算比较,可以直观地看出整个实验过程中不同因素对测定结果的影响,对于影响比较大的因素应该及时予以控制和改善。依据JJF1059-1999《测量不确定度评定与表示》^([1-2]),参考文献的评定方法^([3]),对硫酸氧钛分光光度法测定水中过氧化氢的的不确定度进行了分析评定。

By measuring the uncertainty in the experiment and analyzing,calculating and comparing the uncertainty of each component in the measurement process,we can intuitively see the influence of different factors on the measurement results in the whole experimental process,and the factors with great influence should be controlled and improved in time.According to JJF1059-1999 Evaluation and Expression of Measurement Uncertainty^([1-2])and the evaluation method of references^([3]),the uncertainty of titanium oxysulfate spectrophotometric determination of hydrogen peroxide in water was analyzed and evaluated.