Determination of Polybrominated Diphenyl Ethers in Water Samples Using Effervescent-Assisted Dispersive Liquid-Liquid Icroextraction with Solidification of the Aqueous Phase

文献类型： 外文期刊

第一作者： Wang, Yue

作者： Wang, Yue;Wang, Yue;Zhang, Qicai;Chen, Shanshan;Cheng, Lin;Wang, Xianli;Guan, Shuhui;Song, Weiguo;Rao, Qinxiong;Jing, Xu

作者机构：

关键词： polybrominated diphenyl ethers; effervescent-assisted dispersion; liquid-liquid microextraction; solidification of the aqueous phase; water samples

期刊名称：MOLECULES （ 影响因子：3.267； 五年影响因子：3.589 ）

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年卷期： 2021 年 26 卷 5 期

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收录情况： SCI

摘要： An effective and sensitive method is necessary for the determination of polybrominated diphenyl ethers (PBDEs) pollutants in water. In this study, effervescent-assisted dispersive liquid-liquid microextraction with solidification of the aqueous phase (EA-DLLME-SAP), followed by Gas Chromatography-Tandem Mass Spectrometry (GC-MS-MS) quantitative analysis, was established for the preconcentration and determination of PBDEs in real environmental water samples. 1,1,2,2-Tetrachloroethane was used as the extractant and directly dispersed into the water phase of the aqueous samples with the aid of a large number of carbon dioxide bubbles generated via the acid-base reaction of acetic acid and sodium bicarbonate, which did not require the use of a dispersant during the extraction process. The key factors affecting the extraction recovery were optimized, and an internal standard was used for quantitative analysis, which gave good linearity ranges of 1-100 ng center dot L-1 (BDEs 28, 47, 99, and 100), 2-200 ng center dot L-1 (BDEs 153, 154, and 183) and 5-500 ng center dot L-1 (BDE 209) with limits of quantification in the range of 1.0-5.0 ng center dot L-1. The accuracy was verified with relative standard deviations < 8.5% observed in tap, lake, river and reservoir water samples with relative recoveries ranging from 67.2 to 102.6%. The presented method contributes to the determination of PBDEs in environmental water samples.

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