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食品研究与开发:2020,41(2):156-159
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超高效液相色谱-串联质谱法测定复合调味料中爱德万甜的不确定度评定
(1.康师傅控股有限公司食品安全研究中心,上海201101;2.上海市农产品质量安全检测中心,上海201708;3.徐州工程学院食品(生物)工程学院,江苏徐州221111)
Uncertainty Evaluation of the Determination of Advantame in Compound Seasoning by Ultra High Performance Liquid Chromatography-Tandem Mass Spectrometry
(1.Food Safety Research Center,Tingyi Holding Co.,Ltd.,Shanghai 201101,China;2.Shanghai Quality and Safety Testing Centre of Agricultural Product,Shanghai 201708,China;3.College of Food and Biological Engineering,Xuzhou Institute of Technology,Xuzhou 221111,Jiangsu,China)
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投稿时间:2019-01-24    
中文摘要: 采用超高效液相色谱-串联质谱法测定复合调味料中的爱德万甜,并建立不确定度评定模型。通过对不确定来源的分析计算,得出合成不确定度及扩展不确定度。根据结果表明,最小二乘拟合引入的不确定度影响最大。当取样量为1.000 0 g,k=2(95%置信水平)时,测得爱德万甜理论含量为50 μg/kg 的复合调味料中爱德万甜的值为(50.03±2.98)μg/kg。
Abstract:The advantame content in compound seasoning was determined by ultra high performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS),and the uncertainty evaluating model was established.Through the analysis of each component uncertainty,the combined standard uncertainty and the expand uncertainty were calculated.Comparing each component of uncertainty in the process,the results showed that the effect of the squares fitting was the maximum.The amount of advantame in compound seasoning with a theoretical content of advantame of 50 μg/kg was(50.03±2.98)μg/kg when the sample weight was 1.000 0 g,k=2(95%confidence).
文章编号:202002027     中图分类号:    文献标志码:
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