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| Registros recuperados : 44 | |
| Registros recuperados : 44 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
04/12/2019 |
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Data da última atualização: |
15/03/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
SOUZA, D. R. C. de; ASSALIN, M. R.; SANTOS, R. S. dos; DORES, E. F. G. C. |
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Afiliação: |
DEBORA RENATA CASSOLI DE S DUTRA, CNPMA; MARCIA REGINA ASSALIN, CNPMA; ROBERTA SCANAGATTA DOS SANTOS, UFMT; ELIANA F GASPAR DE CARVALHO DORES, UFMT. |
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Título: |
Method validation for multiresidue pesticide determinationin riverbed sediment using QuEChERS and GC-MS/MS and application in samples from an important watershed in Central Western Brazil. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
International Journal of Environmental Analytical Chemistry,v. 100, n. 13, p. 1536-1548, 2020. |
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DOI: |
https://doi.org/10.1080/03067319.2019.1657107 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: n time and ion ratio, makes it suitable for the analysis of complex samples such as sediment. Finally, the method was applied to samples of river sediment collected near cotton and soybean cultivation. Twelve sediment samples from the São LoThis study aims at validating a method used to determine pesticide residues in areas of cotton and soybean crops riverbed sediments in the São Lourenço River basin, an important watershed in Central Western Brazil, which has a history of pesticide use during cultivation. The optimised QuEChERS acetate methodology was validated, demonstrating good accuracy (71.7-116.4%), except for carbosulfan (51.0%), and good precision (intra-day repeatability 5.1-20.0% and inter-day reproducibility 6.2-18.5%) except for trifluralin and carbosulfan. The linearity was satisfactory with coefficient determination R2 > 0,99. The use of internal standard, triphenyl phosphate (TPP), showed better results during validation than without its use. The limits of detection and quantification range were 1.07 to 10.7 ng g-1 and 5.0 to 15.0 ng g-1 of dry weight sediment, respectively. The matrix effect was evaluated and a strong signal enhancement was observed using gas chromatograph (GC) coupled with spectrometry mass (MS/MS). The use of matrix-matched standards was compensated by better sensibility in the analysis. The use of simple, fast, sensitive methodology combined with the use of two transitions, retentiourenço River basin, Mato Grosso, were analysed to test the applicability of the validated method. Among the 22 analysed pesticides, cyhalothrin was detected in two samples (59.8 and 66.9 ng g-1), difenoconazole in five samples (MenosAbstract: n time and ion ratio, makes it suitable for the analysis of complex samples such as sediment. Finally, the method was applied to samples of river sediment collected near cotton and soybean cultivation. Twelve sediment samples from the São LoThis study aims at validating a method used to determine pesticide residues in areas of cotton and soybean crops riverbed sediments in the São Lourenço River basin, an important watershed in Central Western Brazil, which has a history of pesticide use during cultivation. The optimised QuEChERS acetate methodology was validated, demonstrating good accuracy (71.7-116.4%), except for carbosulfan (51.0%), and good precision (intra-day repeatability 5.1-20.0% and inter-day reproducibility 6.2-18.5%) except for trifluralin and carbosulfan. The linearity was satisfactory with coefficient determination R2 > 0,99. The use of internal standard, triphenyl phosphate (TPP), showed better results during validation than without its use. The limits of detection and quantification range were 1.07 to 10.7 ng g-1 and 5.0 to 15.0 ng g-1 of dry weight sediment, respectively. The matrix effect was evaluated and a strong signal enhancement was observed using gas chromatograph (GC) coupled with spectrometry mass (MS/MS). The use of matrix-matched standards was compensated by better sensibility in the analysis. The use of simple, fast, sensitive methodology combined with the use of two transitions, retentiourenço River basin, Mato Grosso, were analysed ... Mostrar Tudo |
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Palavras-Chave: |
QuEChERS. |
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Thesagro: |
Agrotóxico; Análise Química; Bacia Hidrográfica; Resíduo Quimico. |
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Thesaurus NAL: |
Gas chromatography-mass spectrometry; Pesticide residues; Sediments; Watersheds. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02839naa a2200277 a 4500
001 2115974
005 2022-03-15
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1080/03067319.2019.1657107$2DOI
100 1 $aSOUZA, D. R. C. de
245 $aMethod validation for multiresidue pesticide determinationin riverbed sediment using QuEChERS and GC-MS/MS and application in samples from an important watershed in Central Western Brazil.$h[electronic resource]
260 $c2020
520 $aAbstract: n time and ion ratio, makes it suitable for the analysis of complex samples such as sediment. Finally, the method was applied to samples of river sediment collected near cotton and soybean cultivation. Twelve sediment samples from the São LoThis study aims at validating a method used to determine pesticide residues in areas of cotton and soybean crops riverbed sediments in the São Lourenço River basin, an important watershed in Central Western Brazil, which has a history of pesticide use during cultivation. The optimised QuEChERS acetate methodology was validated, demonstrating good accuracy (71.7-116.4%), except for carbosulfan (51.0%), and good precision (intra-day repeatability 5.1-20.0% and inter-day reproducibility 6.2-18.5%) except for trifluralin and carbosulfan. The linearity was satisfactory with coefficient determination R2 > 0,99. The use of internal standard, triphenyl phosphate (TPP), showed better results during validation than without its use. The limits of detection and quantification range were 1.07 to 10.7 ng g-1 and 5.0 to 15.0 ng g-1 of dry weight sediment, respectively. The matrix effect was evaluated and a strong signal enhancement was observed using gas chromatograph (GC) coupled with spectrometry mass (MS/MS). The use of matrix-matched standards was compensated by better sensibility in the analysis. The use of simple, fast, sensitive methodology combined with the use of two transitions, retentiourenço River basin, Mato Grosso, were analysed to test the applicability of the validated method. Among the 22 analysed pesticides, cyhalothrin was detected in two samples (59.8 and 66.9 ng g-1), difenoconazole in five samples (<LOQ to 34.4 ng g-1), azoxystrobin in one sample (9.5 ng g-1) and bifenthrin was detected in 10 samples whose levels ranged from < LOQ to 151.4 ng g-1.
650 $aGas chromatography-mass spectrometry
650 $aPesticide residues
650 $aSediments
650 $aWatersheds
650 $aAgrotóxico
650 $aAnálise Química
650 $aBacia Hidrográfica
650 $aResíduo Quimico
653 $aQuEChERS
700 1 $aASSALIN, M. R.
700 1 $aSANTOS, R. S. dos
700 1 $aDORES, E. F. G. C.
773 $tInternational Journal of Environmental Analytical Chemistry,v. 100$gn. 13, p. 1536-1548, 2020.
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