Evaluation of Uncertainty in Determination of Ethyl Maltol in Vegetable Oil by Ultra-high Performance Liquid Chromatograph-Mass Spectrometer(UPLC-MS)  

作　　者：Lei ZHANG 

机构地区：[1]Anhui Institute for Food and Drug Control,Hefei 230051,China [2]National Agriculture Vice-processing Food Surveillance Test Center,Hefei 230051,China

出　　处：《Agricultural Biotechnology》2023年第3期113-115,共3页农业生物技术（英文版）

摘　　要：[Objectives]This study was conducted to establish an uncertainty evaluation method for the determination of ethyl maltol by ultra-high performance liquid chromatograph-mass spectrometer(UPLC-MS).[Methods]A mathematical model of uncertainty was established by analyzing the method for determining ethyl maltol using UPLC-MS.The sources of uncertainty were analyzed,and the components of uncertainty were calculated to evaluate the expanded uncertainty of the method.[Results]When the content of ethyl maltol in edible vegetable oil was 1657μg/kg,the expanded uncertainty was 22.4μg/kg(K=2,P=95%).[Conclusions]The uncertainty in this evaluation model mainly came from standard solution preparation,sample weighing,dilution of sample to constant volume,standard curve fitting,and repeated measurement.

关 键 词：Ultra-high performance liquid chromatograph-mass spectrometer DETERMINATION Ethyl maltol Uncertainty 

分 类 号：TS225.1[轻工技术与工程—粮食、油脂及植物蛋白工程] O657.63[轻工技术与工程—食品科学与工程]