Fast screening of trace multiresidue pesticides on fruit and vegetable surfaces using ambient ionization tandem mass spectrometry

doi:10.1016/j.aca.2019.12.038

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標題:	Fast screening of trace multiresidue pesticides on fruit and vegetable surfaces using ambient ionization tandem mass spectrometry
作者:	Cheng, Sy-Chyi Lee, Ruei-Hao Jeng, Jing-Yueh Lee, Chi-Wei Shiea, Jentaie
貢獻者:	Natl Sun Yat Sen Univ, Dept Chem Chia Nan Univ Pharm & Sci, Dept Biotechnol Natl Sun Yat Sen Univ, Inst Med Sci & Technol Kaohsiung Med Univ Hosp, Dept Emergency Med Kaohsiung Med Univ, Dept Med & Appl Chem Kaohsiung Med Univ, Res Ctr Environm Med
關鍵字:	Multiresidue pesticide analysis Thermal desorption electrospray ionization Ambient mass spectrometry Tandem mass spectrometry
日期:	2020
上傳時間:	2022-11-18 11:26:05 (UTC+8)
出版者:	Elsevier
摘要:	An ambient ionization tandem mass spectrometric approach was developed to rapidly screen multi-residue pesticides on fruits and vegetables without sample preparation and chromatographic separation. The residual pesticides on fruits and vegetables were collected by sweeping a metallic probe across the sample surface for 2 cm. The analytes collected on the probe were desorbed and ionized in a thermal desorption electrospray ionization (TD-ESI) source, after which analyte ions were detected by a triple quadruple mass analyzer (QqQ) operated in multiple reaction monitoring (MRM) mode. With this TD-ESI/MS/MS approach, 308 pesticides were monitored, where a mixture containing 15 pesticide standards was successfully identified to demonstrate the capability of this approach to screen trace multi-residue pesticides. The approach had reasonable detection limits (<50 ppb) and reproducibility (RSD: 8.43%, n = 9) from the analysis of a benthiazole standard solution. Real samples including a tomato and bell pepper were analyzed using this TD-ESI/MS/MS approach. After TD-ESI/MS/MS analysis, the organic solvent extracts from the same samples were subjected to TD-ESI/MS/MS, gas chromatography mass spectrometry (GC-MS), and liquid chromatography tandem mass spectrometry (LC-MS/MS) analysis for validation. (C) 2019 Elsevier B.V. All rights reserved.
關聯:	Analytica Chimica Acta, v.1102, pp.9
显示于类别:	[生物科技系(所)] 期刊論文

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