典型文献
Determination of 19 polyphenolic compounds in tea by ultra-high performance liquid chromatography combined with quadrupole-time of flight mass spectrometry
文献摘要：
A rapid method was presented for the determination of 19 polyphenols in tea by ultra-high performance liquid chromatography coupled with quadrupole-time of flight mass spectrometry(UPLC-Q-TOF MS).Tea samples were extracted by 50％(V/V)ethanol,then separated by Waters Acquity BEH C18 column using a binary solvent system composed of acetonitrile and water(0.1％formic acid)by gradient elution.The analytes were determined by Q-TOF MS in TOF MS and information dependent acquisition(IDA)-MS/MS mode.The results showed that mass accuracy error of the 19 polyphenols were lower than 5.0×10-6,good linear relationship was got in range of 0.2-500 μg/L and correlation coefficient was higher than 0.999 0.The LOD was in the range of 0.002-0.100 mg/kg and the LOQ was in the range of 0.004-0.200 mg/kg.Recovery of the method was in range of 78.4％-109.2％with spike levels of 0.004-2.000 mg/kg,relative standard deviations were lower than 10％.The method was simple,rapid and accurate.It could be used for the rapid screening and quantitative analysis of 19 polyphenols in tea.
文献关键词：
中图分类号：
作者姓名：
Jian Li;Junmei Ma;Yan Zhang;Lei Zheng
作者机构：
School of Food and Biological Engineering,Hefei University of Technology,Hefei 230009,China;College of Applied Arts and Science,Beijing Union University,Beijing 100191,China;Hebei Key Laboratory of Forensic Medicine,College of Forensic Medicine,Hebei Medical University,Shijiazhuang 050017,China;Hebei Food Safety Key Laboratory,Hebei Food Inspection and Research Institute,Shijiazhuang 050227,China
文献出处：
引用格式：
[1]Jian Li;Junmei Ma;Yan Zhang;Lei Zheng-.Determination of 19 polyphenolic compounds in tea by ultra-high performance liquid chromatography combined with quadrupole-time of flight mass spectrometry)[J].食品科学与人类健康（英文）,2022(03):719-726
A类：
B类：
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AB值：
0.582438
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