Detection of pesticides on tomato fruit surface by ultraviolet matrix-assisted laser desorption/ionization mass spectrometry

Small amounts of pesticides and their transformation products may exist on edible parts before harvesting tomato (Solanum lycopersicum L.) fruits. For analyzing these compounds, special techniques with minimum preparations and high sensitivity are needed. The capability of a technique for in situ de...

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Detalles Bibliográficos
Autor principal: Erra Balsells, Rosa
Publicado: 2012
Materias:
In situ detection
Malathion
Pesticide residue
Transformation product
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1880554X_v50_n2_p107_Gholipour
http://hdl.handle.net/20.500.12110/paper_1880554X_v50_n2_p107_Gholipour
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_1880554X_v50_n2_p107_Gholipour
record_format dspace
spelling paper:paper_1880554X_v50_n2_p107_Gholipour2023-06-08T16:30:19Z Detection of pesticides on tomato fruit surface by ultraviolet matrix-assisted laser desorption/ionization mass spectrometry Erra Balsells, Rosa In situ detection Malathion Pesticide residue Transformation product Small amounts of pesticides and their transformation products may exist on edible parts before harvesting tomato (Solanum lycopersicum L.) fruits. For analyzing these compounds, special techniques with minimum preparations and high sensitivity are needed. The capability of a technique for in situ detection of target chemicals can be also a great advantage. Here we report the applicability of ultraviolet matrix-assisted laser desorption/ionization time of flight mass spectrometry (UV-MALDI TOF MS) for direct detection of pesticides and the residues on the tomato fruit surface. Fruits grown in the hydroponic system in a greenhouse were sprayed with a mixture of four pesticides including benomyl, triforine, milbemycin and malathion and collected one week later. The pericarp of sprayed and control fruits was peeled and located on a UV-MALDI plate, air-dried and covered with carbon nanotubes or 2,5-dihydroxybenzoic acid as matrixes. Signals of active and supplementary compounds which are normally present in commercial pesticides could be analyzed and directly detected on the surface of cuticle. A malathion degradation product was also detected on the sprayed fruit pericarp. Fil:Erra-Balsells, R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1880554X_v50_n2_p107_Gholipour http://hdl.handle.net/20.500.12110/paper_1880554X_v50_n2_p107_Gholipour
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic In situ detection
Malathion
Pesticide residue
Transformation product
spellingShingle In situ detection
Malathion
Pesticide residue
Transformation product
Erra Balsells, Rosa
Detection of pesticides on tomato fruit surface by ultraviolet matrix-assisted laser desorption/ionization mass spectrometry
topic_facet In situ detection
Malathion
Pesticide residue
Transformation product
description Small amounts of pesticides and their transformation products may exist on edible parts before harvesting tomato (Solanum lycopersicum L.) fruits. For analyzing these compounds, special techniques with minimum preparations and high sensitivity are needed. The capability of a technique for in situ detection of target chemicals can be also a great advantage. Here we report the applicability of ultraviolet matrix-assisted laser desorption/ionization time of flight mass spectrometry (UV-MALDI TOF MS) for direct detection of pesticides and the residues on the tomato fruit surface. Fruits grown in the hydroponic system in a greenhouse were sprayed with a mixture of four pesticides including benomyl, triforine, milbemycin and malathion and collected one week later. The pericarp of sprayed and control fruits was peeled and located on a UV-MALDI plate, air-dried and covered with carbon nanotubes or 2,5-dihydroxybenzoic acid as matrixes. Signals of active and supplementary compounds which are normally present in commercial pesticides could be analyzed and directly detected on the surface of cuticle. A malathion degradation product was also detected on the sprayed fruit pericarp.
author Erra Balsells, Rosa
author_facet Erra Balsells, Rosa
author_sort Erra Balsells, Rosa
title Detection of pesticides on tomato fruit surface by ultraviolet matrix-assisted laser desorption/ionization mass spectrometry
title_short Detection of pesticides on tomato fruit surface by ultraviolet matrix-assisted laser desorption/ionization mass spectrometry
title_full Detection of pesticides on tomato fruit surface by ultraviolet matrix-assisted laser desorption/ionization mass spectrometry
title_fullStr Detection of pesticides on tomato fruit surface by ultraviolet matrix-assisted laser desorption/ionization mass spectrometry
title_full_unstemmed Detection of pesticides on tomato fruit surface by ultraviolet matrix-assisted laser desorption/ionization mass spectrometry
title_sort detection of pesticides on tomato fruit surface by ultraviolet matrix-assisted laser desorption/ionization mass spectrometry
publishDate 2012
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1880554X_v50_n2_p107_Gholipour
http://hdl.handle.net/20.500.12110/paper_1880554X_v50_n2_p107_Gholipour
work_keys_str_mv AT errabalsellsrosa detectionofpesticidesontomatofruitsurfacebyultravioletmatrixassistedlaserdesorptionionizationmassspectrometry
_version_ 1768543393161412608

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