Analysis of tomato matrix effect in pesticide residue quantification through QuEChERS and single quadrupole GC/MS

The detection of pesticide in tomato (Solanum lycopersicum L.) matrix using Gas Chromatography hyphenated to Mass Spectrometry detector (GC/MS) can affect the sensitivity of the analysis by enhancement or suppression of their chromatography response, the percentages of recoveries and leading to erro...

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Autores principales:	Domínguez,Ana M, Placencia,Fabian, Cereceda,Francisco, Fadic,Ximena, Quiroz,Waldo
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2014
Materias:	Matrix effect QuEChERS Solanum lycopersicum statistical procedures
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000200004
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spelling	oai:scielo:S0718-583920140002000042018-10-01Analysis of tomato matrix effect in pesticide residue quantification through QuEChERS and single quadrupole GC/MSDomínguez,Ana MPlacencia,FabianCereceda,FranciscoFadic,XimenaQuiroz,Waldo Matrix effect QuEChERS Solanum lycopersicum statistical procedures The detection of pesticide in tomato (Solanum lycopersicum L.) matrix using Gas Chromatography hyphenated to Mass Spectrometry detector (GC/MS) can affect the sensitivity of the analysis by enhancement or suppression of their chromatography response, the percentages of recoveries and leading to errors in the quantification of the pesticides. In this study, the matrix effect was investigated using nine pesticides, and "Quick, Easy, Cheap, Effective, Rugged and Safe" (QuEChERS)-GC/MS analytical technique was validated for pesticides multiresidue analysis. The matrix effect was determined using not statistical and statistical procedures including ANOVA, with similar results. Strong negative matrix effect was found for the pesticides trifluralin, 4,4’-DDT, and permethrin, resulting in the increment of the chromatogram background and a decrease in their detection responses. Contrary, an enhancement induced by the matrix presence was obtained for carbaryl and azinphos methyl, showing a positive medium matrix effect. While, dimethoate, simazine, 4,4’-DDE, and iprodione did not exhibit matrix effect. The detection limits (LOD) obtained, varied from 0.003 to 0.1 mg kg-1. Reproducibility was less than 20% for each pesticide. Recoveries were found to be between 71% and 121%, except for dimethoate, carbaryl, and azinphos methyl which reached values lower than 70%. Recoveries relative standard deviations were less than 22%. QuEChERS-GC/MS technique was used for evaluation of fresh commercial tomatoes samples, detecting carbaryl in all of them, but in concentration levels lower than the maximum residue limits according to regulations of Codex.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.74 n.2 20142014-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000200004en10.4067/S0718-58392014000200004
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Matrix effect QuEChERS Solanum lycopersicum statistical procedures
spellingShingle	Matrix effect QuEChERS Solanum lycopersicum statistical procedures Domínguez,Ana M Placencia,Fabian Cereceda,Francisco Fadic,Ximena Quiroz,Waldo Analysis of tomato matrix effect in pesticide residue quantification through QuEChERS and single quadrupole GC/MS
description	The detection of pesticide in tomato (Solanum lycopersicum L.) matrix using Gas Chromatography hyphenated to Mass Spectrometry detector (GC/MS) can affect the sensitivity of the analysis by enhancement or suppression of their chromatography response, the percentages of recoveries and leading to errors in the quantification of the pesticides. In this study, the matrix effect was investigated using nine pesticides, and "Quick, Easy, Cheap, Effective, Rugged and Safe" (QuEChERS)-GC/MS analytical technique was validated for pesticides multiresidue analysis. The matrix effect was determined using not statistical and statistical procedures including ANOVA, with similar results. Strong negative matrix effect was found for the pesticides trifluralin, 4,4’-DDT, and permethrin, resulting in the increment of the chromatogram background and a decrease in their detection responses. Contrary, an enhancement induced by the matrix presence was obtained for carbaryl and azinphos methyl, showing a positive medium matrix effect. While, dimethoate, simazine, 4,4’-DDE, and iprodione did not exhibit matrix effect. The detection limits (LOD) obtained, varied from 0.003 to 0.1 mg kg-1. Reproducibility was less than 20% for each pesticide. Recoveries were found to be between 71% and 121%, except for dimethoate, carbaryl, and azinphos methyl which reached values lower than 70%. Recoveries relative standard deviations were less than 22%. QuEChERS-GC/MS technique was used for evaluation of fresh commercial tomatoes samples, detecting carbaryl in all of them, but in concentration levels lower than the maximum residue limits according to regulations of Codex.
author	Domínguez,Ana M Placencia,Fabian Cereceda,Francisco Fadic,Ximena Quiroz,Waldo
author_facet	Domínguez,Ana M Placencia,Fabian Cereceda,Francisco Fadic,Ximena Quiroz,Waldo
author_sort	Domínguez,Ana M
title	Analysis of tomato matrix effect in pesticide residue quantification through QuEChERS and single quadrupole GC/MS
title_short	Analysis of tomato matrix effect in pesticide residue quantification through QuEChERS and single quadrupole GC/MS
title_full	Analysis of tomato matrix effect in pesticide residue quantification through QuEChERS and single quadrupole GC/MS
title_fullStr	Analysis of tomato matrix effect in pesticide residue quantification through QuEChERS and single quadrupole GC/MS
title_full_unstemmed	Analysis of tomato matrix effect in pesticide residue quantification through QuEChERS and single quadrupole GC/MS
title_sort	analysis of tomato matrix effect in pesticide residue quantification through quechers and single quadrupole gc/ms
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000200004
work_keys_str_mv	AT dominguezanam analysisoftomatomatrixeffectinpesticideresiduequantificationthroughquechersandsinglequadrupolegcms AT placenciafabian analysisoftomatomatrixeffectinpesticideresiduequantificationthroughquechersandsinglequadrupolegcms AT cerecedafrancisco analysisoftomatomatrixeffectinpesticideresiduequantificationthroughquechersandsinglequadrupolegcms AT fadicximena analysisoftomatomatrixeffectinpesticideresiduequantificationthroughquechersandsinglequadrupolegcms AT quirozwaldo analysisoftomatomatrixeffectinpesticideresiduequantificationthroughquechersandsinglequadrupolegcms
_version_	1714205333881094144

Analysis of tomato matrix effect in pesticide residue quantification through QuEChERS and single quadrupole GC/MS

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