文献类型：期刊文献

英文题名：Determination of 19 polyphenolic compounds in tea by ultra-high performance liquid chromatography combined with quadrupole-time of flight mass spectrometry

作者：Li, Jian[1,2];Ma, Junmei[3,4];Zhang, Yan[3,4];Zheng, Lei[1]

第一作者：Li, Jian;李健

通讯作者：Zheng, L[1];Zhang, Y[2];Zhang, Y[3]

机构：[1]Hefei Univ Technol, Sch Food & Biol Engn, Hefei 230009, Peoples R China;[2]Beijing Union Univ, Coll Appl Arts & Sci, Beijing 100191, Peoples R China;[3]Hebei Med Univ, Coll Forens Med, Hebei Key Lab Forens Med, Shijiazhuang 050017, Hebei, Peoples R China;[4]Hebei Food Inspect & Res Inst, Hebei Food Safety Key Lab, Shijiazhuang 050227, Hebei, Peoples R China

第一机构：Hefei Univ Technol, Sch Food & Biol Engn, Hefei 230009, Peoples R China

通讯机构：[1]corresponding author), Hefei Univ Technol, Sch Food & Biol Engn, Hefei 230009, Peoples R China;[2]corresponding author), Hebei Med Univ, Coll Forens Med, Hebei Key Lab Forens Med, Shijiazhuang 050017, Hebei, Peoples R China;[3]corresponding author), Hebei Food Inspect & Res Inst, Hebei Food Safety Key Lab, Shijiazhuang 050227, Hebei, Peoples R China.

年份：2022

卷号：11

期号：3

起止页码：719-726

外文期刊名：FOOD SCIENCE AND HUMAN WELLNESS

收录：;Scopus(收录号：2-s2.0-85123991245);WOS:【SCI-EXPANDED(收录号:WOS:000762845700029)】；

基金：This work was supported by National Key Research and Development Program of China (2018YFC1603400).

语种：英文

外文关键词：Ultra-high performance liquid chromatography; Quadrupole-time of flight mass spectrometry; Tea; Polyphenols

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 C-18 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 x 10(-6), good linear relationship was got in range of 0.2-500 mu g/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. (C) 2022 Beijing Academy of Food Sciences. Production and hosting by Elsevier B.V. on behalf of KeAi Communications Co., Ltd.