Simultaneous determination of bisphenol A and tetrabromobisphenol A in tea using a modified QuEChERS sample preparation method coupled with liquid chromatography-tandem mass spectrometry

文献类型： 外文期刊

第一作者： Gao, Guanwei

作者： Gao, Guanwei;Chen, Hongping;Zhu, Li;Chai, Yunfeng;Ma, Guicen;Wang, Chen;Hao, Zhenxia;Liu, Xin;Lu, Chengyin

作者机构：

期刊名称：ANALYTICAL METHODS （ 影响因子：2.896； 五年影响因子：2.716 ）

ISSN： 1759-9660

年卷期： 2017 年 9 卷 48 期

页码：

收录情况： SCI

摘要： A rapid and sensitive method for the simultaneous determination of bisphenol A (BPA) and tetrabromobisphenol A (TBBPA) in tea using liquid chromatography-tandem mass spectrometry (LC-MS/ MS) was developed and validated. Sample preparation was based on a modified QuEChERS procedure through extraction of the target analytes using acetonitrile with 0.7% acetic acid followed by a dispersive solid phase extraction (d-SPE) clean up procedure using C-18, MWCNTs and SCX as the adsorbent mixture to eliminate tea co-extracts. The linearity of the method with correlation coefficients (R-2) higher than 0.99 was obtained. The limits of detection (LODs), and limits of quantitation (LOQs) were 8.0 and 20.0 mg kg(-1) for BPA and 0.4 and 1.0 mg kg(-1) for TBBPA, respectively. Satisfactory mean recoveries of BPA and TBBPA at three fortification levels ranged from 88% to 109% and 77% to 99%, respectively, while intra-day and inter-day precisions were below 15%. The developed method was successfully applied to determine BPA and TBPA in 136 tea samples.

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