Fast determination of alkylphenol ethoxylates in leafy vegetables using a modified quick, easy, cheap, effective, rugged, and safe method and ultra-high performance supercritical fluid chromatography-tandem mass spectrometry
文献类型: 外文期刊
第一作者: Jiang, Ze-Jun
作者: Jiang, Ze-Jun;Cao, Xiao-Lin;Li, Hui;Zhang, Chan;Jin, Fen;Shao, Hua;Jin, Mao-Jun;Wang, Shan-Shan;She, Yong-Xin;Wang, Jing;Jiang, Ze-Jun;Cao, Xiao-Lin;Li, Hui;Zhang, Chan;Jin, Fen;Shao, Hua;Jin, Mao-Jun;Wang, Shan-Shan;She, Yong-Xin;Wang, Jing;Abd El-Aty, A. M.;Abd El-Aty, A. M.
作者机构:
关键词: Alkylphenol ethoxylates;Ultra-high performance supercritical fluid;chromatography-tandem mass;spectrometry (UHPSFC-MS/MS);Leafy vegetable;QuEChERS;Background contamination;Residue determination
期刊名称:JOURNAL OF CHROMATOGRAPHY A ( 影响因子:4.759; 五年影响因子:4.302 )
ISSN: 0021-9673
年卷期: 2017 年 1525 卷
页码:
收录情况: SCI
摘要: In the present study, a quick and sensitive method was developed for simultaneous determination of nonylphenol ethoxylates (NPxEOs) and octylphenol ethoxylates (OPxEOs) (x=2-20) in three leafy vegetables, including cabbage, lettuce, and spinach using a modified "QuEChERS" method and ultra-high performance supercritical fluid chromatography-tandem mass spectrometry (UHPSFC-MS/MS) with scheduled multiple reaction monitoring (MRM). Under optimized conditions, the 38 target analytes were analyzed within a short period of time (5 min). The linearities of the matrix-matched standard calibrations were satisfactory with coefficients of determination (R-2)>0.99 and the limits of detection (LOD) and quantification (LOQ) were in between 0.02-0.27 and 0.18-1.75 mu g kg(-1), respectively. The recovery of all target analytes spiked at three (low, medium, and high) fortification levels in various leafy vegetables were ranged from 72.8-122.6% with relative standard deviation (RSD) <= 18.3%. The method was successfully applied to market samples and the target analytes were found in all monitored samples, with total concentrations of 0-8.67 mu g kg(-1) and 15.75-95.75 mu g kg(-1) for OPxEOs and NPxEOs (x=2-20), respectively. In conclusion, the newly developed UHPSFC-ESI-MS/MS method is rapid and versatile and could be extrapolated for qualitative and quantitative analysis of APxEOs in other leafy vegetables. (C) 2017 Elsevier B.V. All rights reserved.
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