PMID- 31260953 OWN - NLM STAT- MEDLINE DCOM- 20190925 LR - 20190925 IS - 1873-7072 (Electronic) IS - 0308-8146 (Linking) VI - 298 DP - 2019 Nov 15 TI - Quantitative analysis of fourteen heterocyclic aromatic amines in bakery products by a modified QuEChERS method coupled to ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS). PG - 125048 LID - S0308-8146(19)31150-1 [pii] LID - 10.1016/j.foodchem.2019.125048 [doi] AB - Heterocyclic aromatic amines (HAAs) are harmful by-products naturally formed during the heating process of foodstuffs. The present work reported an analytical method for HAAs analysis for the first time in bakery products by QuEChERS technique combined with ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS). Bakery products were ultrasonically extracted with acetonitrile and sodium hydroxide solution (1 mmol/L). The obtained extracting solution was nearly dried under nitrogen stream and subsequently purified by QuEChERS technique using primary secondary amine (PSA) as adsorbents. Fourteen HAAs were separated on a C18 column with the mobile phase of a mixture of acetonitrile and 1 mmol/L ammonium acetate water solution (containing 0.04% acetic acid), and detected by MS/MS under multiple reaction monitoring (MRM) mode. The developed method was validated in terms of linearity, matrix effect, accuracy and precision. The method showed a good linearity (R(2) > 0.999) for all analytes in their corresponding concentration ranges. The method limit of quantifications (LOQs, S/N = 10) of 14 HAAs were in the range of 0.3-4.5 mug/kg. The average recoveries (n = 6) at 3 spiked levels ranged from 62.8 to 96.8% with relative standard deviations (RSDs) of 1.2-7.6%. The validated method was applied in HAAs analysis in 20 bakery products and 4 kinds of HAAs (harman, norharman, AaC, PhIP) were detected with the concentrations ranging from 0.6 to 35.6 mug/kg. CI - Copyright (c) 2019 Elsevier Ltd. All rights reserved. FAU - Wu, Yuluan AU - Wu Y AD - Guangzhou Quality Supervision and Testing Institute, Guangzhou City Research Center of Risk Dynamic Detection and Early Warning for Food Safety, Guangzhou City Key Laboratory of Detection Technology for Food Safety, Guangzhou 511447, China. FAU - Chen, Liwei AU - Chen L AD - Guangzhou Quality Supervision and Testing Institute, Guangzhou City Research Center of Risk Dynamic Detection and Early Warning for Food Safety, Guangzhou City Key Laboratory of Detection Technology for Food Safety, Guangzhou 511447, China. FAU - Xian, Yanping AU - Xian Y AD - Guangzhou Quality Supervision and Testing Institute, Guangzhou City Research Center of Risk Dynamic Detection and Early Warning for Food Safety, Guangzhou City Key Laboratory of Detection Technology for Food Safety, Guangzhou 511447, China. Electronic address: zjyxyp2015@163.com. FAU - Hou, Xiangchang AU - Hou X AD - Guangzhou Quality Supervision and Testing Institute, Guangzhou City Research Center of Risk Dynamic Detection and Early Warning for Food Safety, Guangzhou City Key Laboratory of Detection Technology for Food Safety, Guangzhou 511447, China. FAU - Liang, Ming AU - Liang M AD - Guangzhou Quality Supervision and Testing Institute, Guangzhou City Research Center of Risk Dynamic Detection and Early Warning for Food Safety, Guangzhou City Key Laboratory of Detection Technology for Food Safety, Guangzhou 511447, China. FAU - Dong, Hao AU - Dong H AD - College of Light Industry and Food Sciences, Zhongkai University of Agricultural and Engineering, Guangzhou 510225, China. Electronic address: 516410953@163.com. FAU - Chen, Jiefeng AU - Chen J AD - Guangzhou Quality Supervision and Testing Institute, Guangzhou City Research Center of Risk Dynamic Detection and Early Warning for Food Safety, Guangzhou City Key Laboratory of Detection Technology for Food Safety, Guangzhou 511447, China. LA - eng PT - Journal Article DEP - 20190619 PL - England TA - Food Chem JT - Food chemistry JID - 7702639 RN - 0 (Amines) RN - 0 (Heterocyclic Compounds) SB - IM MH - Amines/*analysis/chemistry MH - Bread/analysis MH - Chromatography, High Pressure Liquid/*methods MH - Heterocyclic Compounds/chemistry MH - Limit of Detection MH - Reproducibility of Results MH - Tandem Mass Spectrometry/*methods OTO - NOTNLM OT - Bakery products OT - Heterocyclic aromatic amine OT - QuEChERS OT - Ultra-high performance liquid chromatography-tandem mass spectrometry EDAT- 2019/07/02 06:00 MHDA- 2019/09/26 06:00 CRDT- 2019/07/02 06:00 PHST- 2018/12/08 00:00 [received] PHST- 2019/05/05 00:00 [revised] PHST- 2019/06/18 00:00 [accepted] PHST- 2019/07/02 06:00 [pubmed] PHST- 2019/09/26 06:00 [medline] PHST- 2019/07/02 06:00 [entrez] AID - S0308-8146(19)31150-1 [pii] AID - 10.1016/j.foodchem.2019.125048 [doi] PST - ppublish SO - Food Chem. 2019 Nov 15;298:125048. doi: 10.1016/j.foodchem.2019.125048. Epub 2019 Jun 19.