Objective To analyze the uncertainty for the determination of saccharin sodium in mixed wine by ultra performance liquid chromatography. Methods According to the regulation and requirement of JJF 1059.1-2012 Evaluation and expression of uncertainty in measurement and CNSA-GL06 Guidance on evaluating the uncertainty in chemical analysis, various sources of uncertainty in the measurement process of saccharin sodium content were analyzed. Results When the content of saccharin sodium in the prepared wine was 0.105 g/kg, the expanded uncertainty was 0.010 g/kg (k=2). Conclusion The greatest uncertainty was introduced during the establishment of the standard curve, followed by less uncertainty in the standard solution, the uncertainty introduced by sample pretreatment and measurement repeatability was relatively small.
标题：超高效液相色谱法测定配制酒中糖精钠的不确定度分析
英文标题：Uncertainty analysis for the determination of saccharin sodium in mixed wine by ultra performance liquid chromatography
