摘要
目的分析超高效液相色谱法测定配制酒中糖精钠的不确定度。方法依据JJF1059.1-2012《测量不确定度评定与表示》和CNSA-GL06-2018《化学分析中不确定度的评估指南》中的规定和要求,分析糖精钠含量测定过程中的各种不确定度的来源。结果当配制酒中糖精钠的含量为0.105g/kg时,其扩展不确定度为0.010g/kg(k=2)。结论建立标准曲线的过程中引入的不确定度最大,其次是标准溶液,样品前处理过程以及测量重复性实验引入的不确定度相对较小。
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.
作者
李珊
杨宁
胡廷皓
曹仲厚
肖佳芳
蔡亮
LI Shan;YANG Ning;HU Ting-Hao;CAO Zhong-Hou;XIAO Jia-Fang;CAI Liang(General Hospital of the Yangtze River Shipping,Wuhan 430000,China;College of Food science and engineering Wuhan Polytechnic University,Wuhan 430000,China)
出处
《食品安全质量检测学报》
CAS
2018年第19期5109-5113,共5页
Journal of Food Safety and Quality
基金
武汉市卫生计生科研基金资助(WG18Y01)~~
关键词
高效液相色谱法
调制酒
糖精钠
不确定度
ultra performance liquid chromatography
mixed wine
saccharin sodium
uncertainty analysis
作者简介
李珊，硕士，助理工程师，主要研究方向为食品检测技术。E-mail：lishanyn@163．com;通讯作者：蔡亮，硕士，工程师，主要研究方向为食品安全检测。E-mail：314544818@qq．com
