Pang Long, Yang Huiqiang, Yang Peijie, Zhang Hongzhong, Zhao Jihong
Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan 450001, People's Republic of China; Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou, Henan 450001, People's Republic of China.
Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan 450001, People's Republic of China.
Food Chem. 2017 Aug 15;229:445-451. doi: 10.1016/j.foodchem.2017.02.103. Epub 2017 Feb 24.
In this study, dispersive liquid-liquid microextraction coupled with ultra-high-performance liquid chromatography-tandem mass spectrometry was developed for the analysis of five representative organophosphate esters (OPEs) in wine samples. Under optimized conditions, the proposed method resulted in good linearity (R>0.9933) over the range of 0.1-100μgL, with limits of detection (LODs, S/N =3) and quantification (LOQs, S/N =10) in the ranges of 0.48-18.8ngL and 1.58-62.5ngL, respectively. Inter- and intra-assay precisions of RSD% ranged from 3.21% to 6.13% and from 1.69% to 7.63%, respectively. The spiked recoveries of target OPEs from white wine, red wine, and beer samples were in the ranges of 80-122%, 76-120%, and 76-110%, respectively, at two different concentration levels. The total concentrations of five OPEs found in white wine, red wine, and beer samples were in the ranges of 0.29-0.85μgL, 1.00-3.05μgL, and 0.86-1.47μgL, respectively.
在本研究中，建立了分散液液微萃取结合超高效液相色谱 - 串联质谱法用于分析葡萄酒样品中的五种代表性有机磷酸酯（OPEs）。在优化条件下，该方法在0.1 - 100μg/L范围内具有良好的线性（R>0.9933），检测限（LODs，S/N = 3）和定量限（LOQs，S/N = 10）分别在0.48 - 18.8ng/L和1.58 - 62.5ng/L范围内。批间和批内精密度的相对标准偏差（RSD%）分别在3.21%至6.13%和1.69%至7.63%范围内。在两个不同浓度水平下，白葡萄酒、红葡萄酒和啤酒样品中目标OPEs的加标回收率分别在80 - 122%、76 - 120%和76 - 110%范围内。白葡萄酒、红葡萄酒和啤酒样品中发现的五种OPEs的总浓度分别在0.29 - 0.85μg/L、1.00 - 3.05μg/L和0.86 - 1.47μg/L范围内。
