Determination of Pyrethroids in Dendrobium officinale by Ultrasound/Microwave-Assisted Solid-Liquid-Solid Dispersive Extraction, Gas Chromatography, and Triple-Quadrupole Mass Spectrometry

文献类型： 外文期刊

第一作者： Wu, Huizhen

作者： Wu, Huizhen;Li, Zuguang;Qian, Mingrong;Wang, Jianmei;Zhang, Hu

作者机构：

关键词： Dendrobium officinale;gas chromatography-mass spectrometry;pyrethroids;solid-liquid-solid dispersive extraction;ultrasound/microwave-assisted extraction

期刊名称：ANALYTICAL LETTERS （ 影响因子：2.329； 五年影响因子：1.738 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： An ultrasound/microwave-assisted solid-liquid-solid dispersive extraction method was developed for the determination of 16 pyrethroid insecticides in Dendrobium officinale. The extraction and purification were performed in one step. The pyrethroids were extracted with 8: 2 acetone: hexane and purified with a mixture of primary secondary amine, Florisil, C18, and graphitized carbon black. The extraction temperature, extraction time, and ultrasound power were optimized. Trans-cyfluthrin-d(6) was used as the internal standard to improve the accuracy. Under the optimized conditions, the recoveries of the pyrethroids were from 72.2 to 113.9% with the limits of detection between 0.29 and 9.38 mu g kg(-1). The optimized method was successfully used for the determination of pyrethroids in commercial D. officinale samples and may allow monitoring pyrethroids in herbal products.

分类号： O65

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