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Ultrasound/microwave-assisted solid-liquid-solid dispersive extraction with high-performance liquid chromatography coupled to tandem mass spectrometry for the determination of neonicotinoid insecticides in Dendrobium officinale

文献类型: 外文期刊

作者: Zheng, Shuilian 1 ; Wu, Huizhen 2 ; Li, Zuguang 2 ; Wang, Jianmei 3 ; Zhang, Hu 3 ; Qian, Mingrong 3 ;

作者机构: 1.Zhejiang Prov Peoples Hosp, Dept Pharm, Hangzhou, Zhejiang, Peoples R China

2.Zhejiang Univ Technol, Coll Chem Engn, Hangzhou, Zhejiang, Peoples R China

3.Zhejiang Acad Agr Sci, Inst Qual & Stand Agroprod, MOA Key Lab Pesticide Residue Detect, Hangzhou 310021, Zhejiang, Peoples R China

关键词: Dendrobium officinale;Microwave-assisted extraction;Neonicotinoid insecticides;Solid-liquid-solid dispersive extraction;Ultrasound-assisted extraction

期刊名称:JOURNAL OF SEPARATION SCIENCE ( 影响因子:3.645; 五年影响因子:2.943 )

ISSN:

年卷期:

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收录情况: SCI

摘要: A one-step ultrasound/microwave-assisted solid-liquid-solid dispersive extraction procedure was used for the simultaneous determination of eight neonicotinoids (dinotefuran, nitenpyram, thiamethoxam, clothianidin, imidacloprid, acetamiprid, thiacloprid, imidaclothiz) in dried Dendrobium officinale by liquid chromatography combined with electrospray ionization triple quadrupole tandem mass spectrometry in multiple reaction monitoring mode. The samples were quickly extracted by acetonitrile and cleaned up by the mixed dispersing sorbents including primary secondary amine, C-18, and carbon-GCB. Parameters that could influence the ultrasound/microwave-assisted extraction efficiency such as microwave irradiation power, ultrasound irradiation power, temperature, and solvent were investigated. Recovery studies were performing well (70.4-113.7%) at three examined spiking levels (10, 50, and 100 mu g/kg). Meanwhile, the limits of quantification for the neonicotinoids ranged from 0.87 to 1.92 mu g/kg. The method showed good linearity in the concentration range of 1-100 mu g/L with correlation coefficients >0.99. This quick and useful analytical method could provide a basis for monitoring neonicotinoid insecticide residues in herbs.

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