PMID- 33752112 OWN - NLM STAT- MEDLINE DCOM- 20210510 LR - 20210510 IS - 1873-7072 (Electronic) IS - 0308-8146 (Linking) VI - 354 DP - 2021 Aug 30 TI - Development and validation of the one-step purification method coupled to LC-MS/MS for simultaneous determination of four aflatoxins in fermented tea. PG - 129497 LID - S0308-8146(21)00503-3 [pii] LID - 10.1016/j.foodchem.2021.129497 [doi] AB - Aflatoxin B(1) is the potential chemical contaminant of most concern during the production and storage of fermented tea. In this work, a simple, fast, sensitive, accurate, and inexpensive method has been developed and validated for the simultaneous detection of four aflatoxins in fermented tea based on a modified sample pretreatment method and liquid chromatography-tandem mass spectrometry (LC-MS/MS). Aflatoxins were extracted using acetonitrile and purified using mixed fillers (carboxyl multiwalled carbon nanotubes, hydrophilic-lipophilic balance, silica gel). Under optimum LC-MS conditions, the limits of quantification (LOQs) were 0.02-0.5 microg.kg(-1). Recoveries from aflatoxins-fortified tea samples (1-12 microg.kg(-1)) were in the range of 78.94-105.23% with relative standard deviations (RSDs) less than 18.20%. The proposed method was applied successfully to determine aflatoxin levels in fermented tea samples. CI - Copyright (c) 2021 Elsevier Ltd. All rights reserved. FAU - Zhou, Haiyan AU - Zhou H AD - SIBS-UGENT-SJTU Joint Laboratory of Mycotoxin Research, CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, China. FAU - Liu, Na AU - Liu N AD - SIBS-UGENT-SJTU Joint Laboratory of Mycotoxin Research, CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, China. FAU - Yan, Zheng AU - Yan Z AD - SIBS-UGENT-SJTU Joint Laboratory of Mycotoxin Research, CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, China. FAU - Yu, Dianzhen AU - Yu D AD - SIBS-UGENT-SJTU Joint Laboratory of Mycotoxin Research, CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, China. FAU - Wang, Lan AU - Wang L AD - SIBS-UGENT-SJTU Joint Laboratory of Mycotoxin Research, CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, China. FAU - Wang, Kunbo AU - Wang K AD - Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, Hunan 410128, PR China. FAU - Wei, Xinlin AU - Wei X AD - School of Agriculture and Biology, Shanghai Jiao Tong University, Minhang, Shanghai 200240, PR China. FAU - Wu, Aibo AU - Wu A AD - SIBS-UGENT-SJTU Joint Laboratory of Mycotoxin Research, CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, China. Electronic address: abwu@sibs.ac.cn. LA - eng PT - Journal Article DEP - 20210308 PL - England TA - Food Chem JT - Food chemistry JID - 7702639 RN - 0 (Aflatoxins) RN - 0 (Nanotubes, Carbon) RN - 0 (Teas, Herbal) RN - 60650-90-0 (Silica Gel) SB - IM MH - Aflatoxins/*analysis/isolation & purification MH - Chromatography, High Pressure Liquid/*methods MH - Hydrophobic and Hydrophilic Interactions MH - Limit of Detection MH - Nanotubes, Carbon/chemistry MH - Reproducibility of Results MH - Silica Gel/chemistry MH - Tandem Mass Spectrometry MH - Teas, Herbal/*analysis OTO - NOTNLM OT - Aflatoxins OT - Liquid chromatography-tandem mass spectrometry OT - Matrix effects OT - One-step purification OT - Tea EDAT- 2021/03/23 06:00 MHDA- 2021/05/11 06:00 CRDT- 2021/03/22 20:21 PHST- 2020/10/24 00:00 [received] PHST- 2021/01/20 00:00 [revised] PHST- 2021/02/25 00:00 [accepted] PHST- 2021/03/23 06:00 [pubmed] PHST- 2021/05/11 06:00 [medline] PHST- 2021/03/22 20:21 [entrez] AID - S0308-8146(21)00503-3 [pii] AID - 10.1016/j.foodchem.2021.129497 [doi] PST - ppublish SO - Food Chem. 2021 Aug 30;354:129497. doi: 10.1016/j.foodchem.2021.129497. Epub 2021 Mar 8.