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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
31/08/2022 |
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Data da última atualização: |
31/08/2022 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
MAZZEI, J. R. F.; FREIRE, E.; SERRA, E. G.; MACEDO, J. R. de; OLIVEIRA, A. C. de; BASTOS, L. H. P.; CARDOSO, M. H. W. M. |
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Afiliação: |
JOÃO ROBERTO FORTES MAZZEI, UFRJ; ESTEVÃO FREIRE, UFRJ; EDUARDO GONÇALVES SERRA, UFRJ; JOSE RONALDO DE MACEDO, CNPS; ANGÉLICA CASTANHEIRA DE OLIVEIRA, FIOCRUZ; LUCIA HELENA PINTO BASTOS, FIOCRUZ; MARIA HELENA WOHLERS MORELLI CARDOSO, FIOCRUZ. |
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Título: |
Multiresidue method for analysis of 240 pesticides in tomato planting soils by ultra performance liquid chromatography coupled to mass spectrometry. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
In: SOUTH FLORIDA CONGRESS OF DEVELOPMENT, 1., 2021. Proceedings [...]. Deerfield Beach: South Florida Publishing, 2021. Evento on-line. |
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Idioma: |
Inglês |
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Conteúdo: |
In this work, an analytical method for the determination of residues was optimized for the focus pesticides: Azoxystrobin, Boscalid, Carbendazim, Chlorantraniliprole, Clothianidin, Diafenthiuron, Difenoconazole, Dimethomorph, Spinetoram, Spinosad A, Spinosad D, Fenuron, Imidacloprid, Indoxacarb, Metalaxyl M, Methoxyfenozide, Thiamethoxan in soil derived from the tomato crop, to compare the contamination levels of these compounds in samples. The modified QuEChERS extraction method and Ultra Performance Liquid Chromatography coupled to Sequential Mass Spectrometry were used (CLUE-MS/MS), with an electronebulization ionization source in ESI (+/-) mode. The method consisted of extracting 15.0 g of soil with 15 mL of saturated calcium hydroxide solution pH 12.3 and 15 mL of acetonitrile, with consequent partitioning in a "salting out" effect using 6.0 g anhydrous magnesium sulfate and 1.5 g sodium chloride. The phases were separated by centrifugation at 3700 rpm for 7 min. Linearity between 0.2 and 20.0 ug L-1, coefficients of determination greater than 0.99. The LOQ values for the method were 13 ug kg-1 for Spinosad and 7.0 ug kg- 1 for the other pesticides. The method showed good precision, with RSD values < 20%, and accuracy, with recoveries between 70 and 120% for the vast majority of the compounds analyzed. The analytical curves were prepared with reference blank soil extracts to minimize the Matrix Effect. The method was found to be suitable for the analysis of pesticide residues in the soil since it meets the validation parameters for chromatographic methods (European Comission, 2018). After validation, the method was used for residue analysis of these pesticides in soil samples from conventional, organic, and sustainable tomato crops. Making it possible to compare the levels of environmental impacts generated. In addition to validating the analytical method for the pesticides that were the focus of the study, validation was also achieved for another 240 compounds, including those authorized and those not authorized for use on tomato crops. MenosIn this work, an analytical method for the determination of residues was optimized for the focus pesticides: Azoxystrobin, Boscalid, Carbendazim, Chlorantraniliprole, Clothianidin, Diafenthiuron, Difenoconazole, Dimethomorph, Spinetoram, Spinosad A, Spinosad D, Fenuron, Imidacloprid, Indoxacarb, Metalaxyl M, Methoxyfenozide, Thiamethoxan in soil derived from the tomato crop, to compare the contamination levels of these compounds in samples. The modified QuEChERS extraction method and Ultra Performance Liquid Chromatography coupled to Sequential Mass Spectrometry were used (CLUE-MS/MS), with an electronebulization ionization source in ESI (+/-) mode. The method consisted of extracting 15.0 g of soil with 15 mL of saturated calcium hydroxide solution pH 12.3 and 15 mL of acetonitrile, with consequent partitioning in a "salting out" effect using 6.0 g anhydrous magnesium sulfate and 1.5 g sodium chloride. The phases were separated by centrifugation at 3700 rpm for 7 min. Linearity between 0.2 and 20.0 ug L-1, coefficients of determination greater than 0.99. The LOQ values for the method were 13 ug kg-1 for Spinosad and 7.0 ug kg- 1 for the other pesticides. The method showed good precision, with RSD values < 20%, and accuracy, with recoveries between 70 and 120% for the vast majority of the compounds analyzed. The analytical curves were prepared with reference blank soil extracts to minimize the Matrix Effect. The method was found to be suitable for the analysis of pesticide re... Mostrar Tudo |
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Palavras-Chave: |
Contaminants in soils; QuEChERS; UPLC-MS/MS. |
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Thesaurus Nal: |
Pesticide residues. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1145910/1/Multiresidue-method-for-analysis-of-240-pesticides-in-tomato-planting-soils-2021.pdf
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Marc: |
LEADER 02918nam a2200229 a 4500
001 2145910
005 2022-08-31
008 2021 bl uuuu u00u1 u #d
100 1 $aMAZZEI, J. R. F.
245 $aMultiresidue method for analysis of 240 pesticides in tomato planting soils by ultra performance liquid chromatography coupled to mass spectrometry.$h[electronic resource]
260 $aIn: SOUTH FLORIDA CONGRESS OF DEVELOPMENT, 1., 2021. Proceedings [...]. Deerfield Beach: South Florida Publishing, 2021. Evento on-line.$c2021
520 $aIn this work, an analytical method for the determination of residues was optimized for the focus pesticides: Azoxystrobin, Boscalid, Carbendazim, Chlorantraniliprole, Clothianidin, Diafenthiuron, Difenoconazole, Dimethomorph, Spinetoram, Spinosad A, Spinosad D, Fenuron, Imidacloprid, Indoxacarb, Metalaxyl M, Methoxyfenozide, Thiamethoxan in soil derived from the tomato crop, to compare the contamination levels of these compounds in samples. The modified QuEChERS extraction method and Ultra Performance Liquid Chromatography coupled to Sequential Mass Spectrometry were used (CLUE-MS/MS), with an electronebulization ionization source in ESI (+/-) mode. The method consisted of extracting 15.0 g of soil with 15 mL of saturated calcium hydroxide solution pH 12.3 and 15 mL of acetonitrile, with consequent partitioning in a "salting out" effect using 6.0 g anhydrous magnesium sulfate and 1.5 g sodium chloride. The phases were separated by centrifugation at 3700 rpm for 7 min. Linearity between 0.2 and 20.0 ug L-1, coefficients of determination greater than 0.99. The LOQ values for the method were 13 ug kg-1 for Spinosad and 7.0 ug kg- 1 for the other pesticides. The method showed good precision, with RSD values < 20%, and accuracy, with recoveries between 70 and 120% for the vast majority of the compounds analyzed. The analytical curves were prepared with reference blank soil extracts to minimize the Matrix Effect. The method was found to be suitable for the analysis of pesticide residues in the soil since it meets the validation parameters for chromatographic methods (European Comission, 2018). After validation, the method was used for residue analysis of these pesticides in soil samples from conventional, organic, and sustainable tomato crops. Making it possible to compare the levels of environmental impacts generated. In addition to validating the analytical method for the pesticides that were the focus of the study, validation was also achieved for another 240 compounds, including those authorized and those not authorized for use on tomato crops.
650 $aPesticide residues
653 $aContaminants in soils
653 $aQuEChERS
653 $aUPLC-MS/MS
700 1 $aFREIRE, E.
700 1 $aSERRA, E. G.
700 1 $aMACEDO, J. R. de
700 1 $aOLIVEIRA, A. C. de
700 1 $aBASTOS, L. H. P.
700 1 $aCARDOSO, M. H. W. M.
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Registro original: |
Embrapa Solos (CNPS) |
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Biblioteca(s): |
Embrapa Uva e Vinho. |
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Data corrente: |
09/10/2023 |
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Data da última atualização: |
09/10/2023 |
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Tipo da produção científica: |
Artigo de Divulgação na Mídia |
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Autoria: |
HAWERROTH, F. J. |
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Afiliação: |
FERNANDO JOSE HAWERROTH, CNPUV. |
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Título: |
Condições climáticas do outono/inverno 2023 e considerações sobre manejo de indução de brotação de macieiras. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Agapomi, n. 352, p. 10-11, set. 2023. |
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Idioma: |
Português |
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Conteúdo: |
A indução de brotação de gemas é uma prática cultural essencial no manejo de pomares de macieira no Sul do Brasil, para garantir aumento da proporção de gemas brotadas, além de uniformização fenológica necessária para a execução de manejos culturais subsequentes, como uso de reguladores de crescimento. A importância dessa técnica é ainda maior em anos em que é evidenciado menor acúmulo em frio nas regiões produtoras de maçã. |
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Thesagro: |
Clima Tropical; Climatologia; Mudança Climática. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1157165/1/Hawerroth-Agapomi-352-P10-11.pdf
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Marc: |
LEADER 00937nam a2200145 a 4500
001 2157165
005 2023-10-09
008 2023 bl uuuu u00u1 u #d
100 1 $aHAWERROTH, F. J.
245 $aCondições climáticas do outono/inverno 2023 e considerações sobre manejo de indução de brotação de macieiras.$h[electronic resource]
260 $aAgapomi, n. 352, p. 10-11, set. 2023.$c2023
520 $aA indução de brotação de gemas é uma prática cultural essencial no manejo de pomares de macieira no Sul do Brasil, para garantir aumento da proporção de gemas brotadas, além de uniformização fenológica necessária para a execução de manejos culturais subsequentes, como uso de reguladores de crescimento. A importância dessa técnica é ainda maior em anos em que é evidenciado menor acúmulo em frio nas regiões produtoras de maçã.
650 $aClima Tropical
650 $aClimatologia
650 $aMudança Climática
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