Hollow fiber-solid phase microextraction of phthalate esters from bottled water followed by flash evaporation gas chromatography-flame ionization detection
文献类型： 外文期刊
作者： Huang, Zhongping 1 ; Tu, Chaochao 1 ; Liu, Huijun 1 ; Wang, Lili 1 ; Zhu, Zuoyi 2 ; Watanabe, Ichi 3 ;
作者机构： 1.Zhejiang Univ Technol, Coll Chem Engn, Hangzhou 310014, Peoples R China
2.Zhejiang Acad Agr Sci, Inst Qual & Stand Agr Prod, Hangzhou 310021, Peoples R China
3.Frontier Labs Ltd, Fukushima 9638862, Japan
关键词： Hollow fiber; Solid phase microextraction; Phthalate esters; Flash evaporation gas chromatography
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： 2020 年 1619 卷
页码：
收录情况： SCI
摘要： A solid phase microextraction coupled with flash evaporation gas chromatography method was applied to the determination of phthalate esters (PAEs). Polysulfone (PSF) hollow fiber at 1 cm length was employed as extraction element to adsorb PAEs directly. Predominant parameters including stirring velocity, salt concentration, extraction time and extraction temperature were optimized. PSF fiber with absorbed PAEs was put into a small sample cup. The extracted analytes were thermally desorbed at 300 degrees C in a pyrolyzer, and then entered into a column for separation. The linearity of the method was satisfactory over a concentration range of 2-1000 mu g/L with the correlation coefficients r>0.99 for all analytes except dimethoxyethyl phthalate. The relative standard deviations for peak areas were below 9.5% (n = 6). The developed technique achieved high enrichment factors (280-9930 times) and low limits of detection (0.001-0.130 mu g/L). The recoveries over the range of 87.0-117.7% were obtained by analyzing real spiked samples. The results demonstrated that this was a simple, environmentally friendly and accurate method for the determination of PAEs in bottled water samples. (C) 2020 Elsevier B.V. All rights reserved.
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