|
|
Registro Completo |
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
14/03/2023 |
Data da última atualização: |
20/03/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
PIRES, N. L.; ARAÚJO, A. P. de; OLIVEIRA FILHO, E. C. de; CALDAS, E. D. |
Afiliação: |
NAYARA LUIZ PIRES, INSTITUTO FEDERAL DE GOIÁS; ESMERALDA PEREIRA DE ARAÚJO, UNIVERSIDADE DE BRASÍLIA; EDUARDO CYRINO DE OLIVEIRA FILHO, CPAC; ELOISA DUTRA CALDAS, UNIVERSIDADE DE BRASÍLIA. |
Título: |
An ultrasensitive LC-MS/MS method for the determination of glyphosate, AMPA and glufosinate in water - analysis of surface and groundwater from a hydrographic basin in the Midwestern region of Brazil. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Science of The Total Environment, v. 875, n. 1624991, June 2023. |
DOI: |
https://doi.org/10.1016/j.scitotenv.2023.162499 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: The intensive use of glyphosate around the world in the last few decades demands constant monitoring of this compound and its metabolite in aquatic compartments. This work aimed to develop a sensitive method for the analysis of glyphosate, AMPA and glufosinate in water by liquid chromatography/tandem mass spectrometry (LC-MS/MS). The method involves analyte concentration by lyophilization (20×) and direct injection on the LC-MS/MS, and was satisfactorily validated at a LOQ of 0.0025 μg L−1. A total of 142 samples of surface and groundwater collected during the 2021/2022 dry and rainy seasons in the Rio Preto Hydrographic Basin were analyzed. All the 52 groundwater samples were positive for glyphosate (up to 1.5868 μg L−1, dry season) and AMPA (up to 0.2751 μg L−1, dry season). A total of 27 of the 90 surface water samples were positive for glyphosate (up to 0.0236 μg L−1), and 31 samples for AMPA (up to 0.0086 μg L−1), over 70 % collected during the dry season. Glufosinate was detected in only five samples, four in groundwater (up to 0.0256 μg L−1). The levels found in the samples are much lower than the maximum levels established by the Brazilian legislation for glyphosate and/or AMPA and lower than the most critical toxicological endpoints for aquatic organisms. However, constant monitoring is necessary, demanding sensitive methods to allow the detection of the very low levels of these pesticides in water. MenosAbstract: The intensive use of glyphosate around the world in the last few decades demands constant monitoring of this compound and its metabolite in aquatic compartments. This work aimed to develop a sensitive method for the analysis of glyphosate, AMPA and glufosinate in water by liquid chromatography/tandem mass spectrometry (LC-MS/MS). The method involves analyte concentration by lyophilization (20×) and direct injection on the LC-MS/MS, and was satisfactorily validated at a LOQ of 0.0025 μg L−1. A total of 142 samples of surface and groundwater collected during the 2021/2022 dry and rainy seasons in the Rio Preto Hydrographic Basin were analyzed. All the 52 groundwater samples were positive for glyphosate (up to 1.5868 μg L−1, dry season) and AMPA (up to 0.2751 μg L−1, dry season). A total of 27 of the 90 surface water samples were positive for glyphosate (up to 0.0236 μg L−1), and 31 samples for AMPA (up to 0.0086 μg L−1), over 70 % collected during the dry season. Glufosinate was detected in only five samples, four in groundwater (up to 0.0256 μg L−1). The levels found in the samples are much lower than the maximum levels established by the Brazilian legislation for glyphosate and/or AMPA and lower than the most critical toxicological endpoints for aquatic organisms. However, constant monitoring is necessary, demanding sensiti... Mostrar Tudo |
Palavras-Chave: |
Glifosato; LC-MS/MS. |
Thesagro: |
Bacia Hidrográfica; Contaminação; Cromatografia; Ecologia Aquatica; Herbicida; Toxicologia. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/247989/1/1-s2.0-S0048969723011154-main.pdf
|
Marc: |
LEADER 02506naa a2200265 a 4500 001 2152364 005 2023-03-20 008 2023 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.scitotenv.2023.162499$2DOI 100 1 $aPIRES, N. L. 245 $aAn ultrasensitive LC-MS/MS method for the determination of glyphosate, AMPA and glufosinate in water - analysis of surface and groundwater from a hydrographic basin in the Midwestern region of Brazil.$h[electronic resource] 260 $c2023 520 $aAbstract: The intensive use of glyphosate around the world in the last few decades demands constant monitoring of this compound and its metabolite in aquatic compartments. This work aimed to develop a sensitive method for the analysis of glyphosate, AMPA and glufosinate in water by liquid chromatography/tandem mass spectrometry (LC-MS/MS). The method involves analyte concentration by lyophilization (20×) and direct injection on the LC-MS/MS, and was satisfactorily validated at a LOQ of 0.0025 μg L−1. A total of 142 samples of surface and groundwater collected during the 2021/2022 dry and rainy seasons in the Rio Preto Hydrographic Basin were analyzed. All the 52 groundwater samples were positive for glyphosate (up to 1.5868 μg L−1, dry season) and AMPA (up to 0.2751 μg L−1, dry season). A total of 27 of the 90 surface water samples were positive for glyphosate (up to 0.0236 μg L−1), and 31 samples for AMPA (up to 0.0086 μg L−1), over 70 % collected during the dry season. Glufosinate was detected in only five samples, four in groundwater (up to 0.0256 μg L−1). The levels found in the samples are much lower than the maximum levels established by the Brazilian legislation for glyphosate and/or AMPA and lower than the most critical toxicological endpoints for aquatic organisms. However, constant monitoring is necessary, demanding sensitive methods to allow the detection of the very low levels of these pesticides in water. 650 $aBacia Hidrográfica 650 $aContaminação 650 $aCromatografia 650 $aEcologia Aquatica 650 $aHerbicida 650 $aToxicologia 653 $aGlifosato 653 $aLC-MS/MS 700 1 $aARAÚJO, A. P. de 700 1 $aOLIVEIRA FILHO, E. C. de 700 1 $aCALDAS, E. D. 773 $tScience of The Total Environment$gv. 875, n. 1624991, June 2023.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Cerrados (CPAC) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
Registro Completo
Biblioteca(s): |
Embrapa Agricultura Digital. |
Data corrente: |
26/10/2015 |
Data da última atualização: |
21/01/2020 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
DOURADO, C. da S.; OLIVEIRA, S. R. de M.; AVILA, A. M. H. de; ALFONSI, W. M. V. |
Afiliação: |
CAMILA DA SILVA DOURADO, Feagri/Unicamp; STANLEY ROBSON DE MEDEIROS OLIVEIRA, CNPTIA; ANA MARIA HEUMINSKI DE AVILA, Cepagri/Unicamp; Feagri/Unicamp. |
Título: |
Influência dos episódios de el niño e la niña nas áreas de risco de desertificação da Bahia. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
In: SIMPÓSIO INTERNACIONAL DE CLIMATOLOGIA, 6., 2015, Natal. Vulnerabilidades climáticas: o Brasil no século XXI: anais. [Natal: Sociedade Brasileira de Meteorologia], 2015. |
Páginas: |
Não paginado. |
Idioma: |
Português |
Notas: |
SIC 2015. |
Conteúdo: |
O objetivo deste trabalho foi analisar a influência dos episódios de El Niño e La Niña, na expansão ou contração das áreas com potencial de risco de desertificação na Bahia. |
Thesagro: |
Desertificação. |
Thesaurus NAL: |
El Nino; La Nina. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/131820/1/elnino-Dourado-SIC.pdf
|
Marc: |
LEADER 00932nam a2200205 a 4500 001 2027272 005 2020-01-21 008 2015 bl uuuu u00u1 u #d 100 1 $aDOURADO, C. da S. 245 $aInfluência dos episódios de el niño e la niña nas áreas de risco de desertificação da Bahia.$h[electronic resource] 260 $aIn: SIMPÓSIO INTERNACIONAL DE CLIMATOLOGIA, 6., 2015, Natal. Vulnerabilidades climáticas: o Brasil no século XXI: anais. [Natal: Sociedade Brasileira de Meteorologia]$c2015 300 $aNão paginado. 500 $aSIC 2015. 520 $aO objetivo deste trabalho foi analisar a influência dos episódios de El Niño e La Niña, na expansão ou contração das áreas com potencial de risco de desertificação na Bahia. 650 $aEl Nino 650 $aLa Nina 650 $aDesertificação 700 1 $aOLIVEIRA, S. R. de M. 700 1 $aAVILA, A. M. H. de 700 1 $aALFONSI, W. M. V.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Agricultura Digital (CNPTIA) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Nenhum registro encontrado para a expressão de busca informada. |
|
|