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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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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
08/01/1991 |
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Data da última atualização: |
06/11/2023 |
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Tipo da produção científica: |
Documentos |
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Autoria: |
CARVALHO FILHO, O. M. de. |
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Afiliação: |
ORLANDO MONTEIRO DE CARVALHO FILHO, CPATSA. |
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Título: |
Uso e manejo de bovinos fistulados no esôfago em ensaios de pastejo. |
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Ano de publicação: |
1981 |
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Fonte/Imprenta: |
Petrolina: EMBRAPA-CPATSA, 1981. |
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Páginas: |
24 p. |
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Série: |
(EMBRAPA-CPATSA. Documentos, 8). |
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Idioma: |
Português |
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Conteúdo: |
Em ensaios de pastejo, quando se pretende avaliar a composicao botanica, a composicao quimica e o valor nutritivo da forragem utilizada, um dos maiores problemas consiste na obtencao de amostras realmente representativas da dieta dos animais na pastagem. A producao animal, sob condicoes de pastejo, e o resultado final de uma serie compleca de interacoes entre o animal e o pasto, e estudos de utilizacao nao podem, a rigor, ser realizados sem que se considere a seletividade exercida pelo animal ao pastar, tanto mais acentuada quanto mais variavel a cobertura floristica da pastagem. Dai porque tecnicas de corte ou arrancamento manual ("hand plucking") tornam-se inadequadas em estudos dessa natureza, ainda que o "hand plucking" propicie amostras satisfatorias em "stands" puros e homogeneos. O emprego de animais fistulados no esofago, particularmente ruminantes, tem sido intensificado nas ultimas decadas, nos mais diversos tipos de pastagens, em diferentes regioes do mundo, como forma comprovadamente eficiente de amostragem da dieta para avaliacao dessas pastagens. Pretende-se, neste trabalho, nao uma revisao exaustiva do assunto, mas contemplar algumas informacoes de interesse pratico sobre o uso e manejo de bovinos fistulados no esofago, face ao crescente emprego dessa metodologia em nosso meio. |
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Palavras-Chave: |
Bovine; Bovinos; Bovinos - canulas - tipos; Bovinos - esofago - fistula; Bovinos fistulados - coleta de amostras; Bovinos fistulados - manejo; Experimento; Fistulados; Fistulation; Management; Oesophagus; Pastagens - pastejo - experimentos; Pasture; Use; Uso. |
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Thesagro: |
Bovino; Esôfago; Fistula; Fistula Esofágica; Manejo; Nutrição Animal; Pastagem; Pastejo. |
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Thesaurus NAL: |
animal nutrition; cattle; esophagus; grazing; pastures. |
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Categoria do assunto: |
--
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/131676/1/n-8-Uso-e-manejo-de-bovinos.pdf
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Marc: |
LEADER 02527nam a2200469 a 4500
001 1131676
005 2023-11-06
008 1981 bl uuuu u0uu1 u #d
100 1 $aCARVALHO FILHO, O. M. de
245 $aUso e manejo de bovinos fistulados no esôfago em ensaios de pastejo.
260 $aPetrolina: EMBRAPA-CPATSA$c1981
300 $a24 p.
490 $a(EMBRAPA-CPATSA. Documentos, 8).
520 $aEm ensaios de pastejo, quando se pretende avaliar a composicao botanica, a composicao quimica e o valor nutritivo da forragem utilizada, um dos maiores problemas consiste na obtencao de amostras realmente representativas da dieta dos animais na pastagem. A producao animal, sob condicoes de pastejo, e o resultado final de uma serie compleca de interacoes entre o animal e o pasto, e estudos de utilizacao nao podem, a rigor, ser realizados sem que se considere a seletividade exercida pelo animal ao pastar, tanto mais acentuada quanto mais variavel a cobertura floristica da pastagem. Dai porque tecnicas de corte ou arrancamento manual ("hand plucking") tornam-se inadequadas em estudos dessa natureza, ainda que o "hand plucking" propicie amostras satisfatorias em "stands" puros e homogeneos. O emprego de animais fistulados no esofago, particularmente ruminantes, tem sido intensificado nas ultimas decadas, nos mais diversos tipos de pastagens, em diferentes regioes do mundo, como forma comprovadamente eficiente de amostragem da dieta para avaliacao dessas pastagens. Pretende-se, neste trabalho, nao uma revisao exaustiva do assunto, mas contemplar algumas informacoes de interesse pratico sobre o uso e manejo de bovinos fistulados no esofago, face ao crescente emprego dessa metodologia em nosso meio.
650 $aanimal nutrition
650 $acattle
650 $aesophagus
650 $agrazing
650 $apastures
650 $aBovino
650 $aEsôfago
650 $aFistula
650 $aFistula Esofágica
650 $aManejo
650 $aNutrição Animal
650 $aPastagem
650 $aPastejo
653 $aBovine
653 $aBovinos
653 $aBovinos - canulas - tipos
653 $aBovinos - esofago - fistula
653 $aBovinos fistulados - coleta de amostras
653 $aBovinos fistulados - manejo
653 $aExperimento
653 $aFistulados
653 $aFistulation
653 $aManagement
653 $aOesophagus
653 $aPastagens - pastejo - experimentos
653 $aPasture
653 $aUse
653 $aUso
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