高效液相色谱法测定果汁中阿力甜含量的不确定度评定  

Uncertainty Evaluation for the Determination of Alitame in Fruit Juice by High Performance Liquid Chromatography Method

作　　者：卢光英 陈梦 章小洪 张夏翊 LU Guangying;CHEN Meng;ZHANG Xiaohong;ZHANG Xiayi(Lishui Institute for Quality Inspection and Testing,Lishui 323000,China)

机构地区：[1]丽水市质量检验检测院,浙江丽水323000

出　　处：《现代食品》2022年第2期197-200,共4页Modern Food

摘　　要：根据《食品安全国家标准食品中阿斯巴甜和阿力甜的测定》(GB 5009.263—2016)建立高效液相色谱法测定果汁中阿力甜含量不确定度的数学模型,分析检测过程中的不确定度来源,并对不确定度分量进行量化和合成。结果显示,当果汁中阿力甜含量为24.9 mg·kg^(-1)时,其扩展不确定度为0.0621 mg·kg^(-1)(k=2)。该方法相对不确定度主要来源于标准曲线拟合。According to National Food Safety Standard-Determination of Aspartame and Alitame in Food(GB 5009.263—2016),a mathernatical model of uncertainty evaluation for the determination results of alitame in fruit juice by high performance liquid chromatography method was established.The sources of uncertainty for the determination procedure were analyzed and the main uncertainty were calculated and combined.The results showed that when the content of alitame in fruit juice was 24.9 mg·kg^(-1),its extended relative uncertainty was 0.0621 mg·kg^(-1)(k=2).The major sources of uncertainty were standard curve fitting.

关 键 词：阿力甜 不确定度 高效液相色谱 

分 类 号：O657.7[理学—分析化学]