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Registro Completo |
Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
20/07/1999 |
Data da última atualização: |
12/12/2019 |
Autoria: |
BONATO, P. S.; LANCHOTE, V. L.; DREOSSI, A. de C. |
Afiliação: |
EMBRAPA-CNPMA. |
Título: |
High performance liquid chromatographic screening and gas chromatography-nass spectrometry confirmation of tebuthiuron residues in drinking water. |
Ano de publicação: |
1999 |
Fonte/Imprenta: |
Journal of High Resolution Cromatography, v.22, n.4, p.239-241, 1999. |
Páginas: |
p. 239-241 |
Idioma: |
Inglês |
Conteúdo: |
Tebuthiuron (N-[5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl]-N,N-dimethylurea) is a phenylurea herbicide used in sugar cane culture for the pre- and post-emergence control of weeds [1,2]. Analysis of tebuthiuron (Figure 1) and of other phenylurea herbicides in environmental samples can be performed by HPLC [3-10], or by gas chromatography using selective detectors such as nitrogen-prosphorus detector (NPD), eletron-capture detector (ECD), or a mass spectrometer (MS) [11-16]. Although Loh et al [17] reported that the use of temperatures above 280oC permits quantitative tebuthiuron breakdown, thus permitting the analysis of the products of decomposition formed, methods based on gas chromatography usually involve a derivatization step to permit analysis of this thermal unstable herbicide in its unchanged form [11,12,18]. These methods have been applied to the determination of tebuthiuron residues in soil, foods, and plant material but none of them has been reported for the evaluation of this compound in water. In the present study we describe two methods for tebuthiuron analysis in water samples. The samples were first analyzed by HPLC and the results were confirmed by GC-MS after acetic anhydride derivatization. The methods were applied to the analysis of this herbicide in surface and ground water samples colected from the Espraiado Stream watershed (Ribeirao Preto region, state of Sao Paulo, Brazil). This watershed represents one of the reloading points of the Botucatu ground water table, the largest and most important one in the center-south region of Brasil, including eight Brazilian states and parts of Argentina, Uruguay, and Paraguay, and covering an area of approximately 1.200.000 km2 [19]. MenosTebuthiuron (N-[5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl]-N,N-dimethylurea) is a phenylurea herbicide used in sugar cane culture for the pre- and post-emergence control of weeds [1,2]. Analysis of tebuthiuron (Figure 1) and of other phenylurea herbicides in environmental samples can be performed by HPLC [3-10], or by gas chromatography using selective detectors such as nitrogen-prosphorus detector (NPD), eletron-capture detector (ECD), or a mass spectrometer (MS) [11-16]. Although Loh et al [17] reported that the use of temperatures above 280oC permits quantitative tebuthiuron breakdown, thus permitting the analysis of the products of decomposition formed, methods based on gas chromatography usually involve a derivatization step to permit analysis of this thermal unstable herbicide in its unchanged form [11,12,18]. These methods have been applied to the determination of tebuthiuron residues in soil, foods, and plant material but none of them has been reported for the evaluation of this compound in water. In the present study we describe two methods for tebuthiuron analysis in water samples. The samples were first analyzed by HPLC and the results were confirmed by GC-MS after acetic anhydride derivatization. The methods were applied to the analysis of this herbicide in surface and ground water samples colected from the Espraiado Stream watershed (Ribeirao Preto region, state of Sao Paulo, Brazil). This watershed represents one of the reloading points of the Botucatu ground... Mostrar Tudo |
Palavras-Chave: |
Analysis; Contamination; Residues. |
Thesaurus Nal: |
calibration; environmental impact; groundwater; herbicides; quality control. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/199598/1/Bonato-High.pdf
|
Marc: |
LEADER 02510naa a2200253 a 4500 001 1013136 005 2019-12-12 008 1999 bl uuuu u00u1 u #d 100 1 $aBONATO, P. S. 245 $aHigh performance liquid chromatographic screening and gas chromatography-nass spectrometry confirmation of tebuthiuron residues in drinking water.$h[electronic resource] 260 $c1999 300 $ap. 239-241 520 $aTebuthiuron (N-[5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl]-N,N-dimethylurea) is a phenylurea herbicide used in sugar cane culture for the pre- and post-emergence control of weeds [1,2]. Analysis of tebuthiuron (Figure 1) and of other phenylurea herbicides in environmental samples can be performed by HPLC [3-10], or by gas chromatography using selective detectors such as nitrogen-prosphorus detector (NPD), eletron-capture detector (ECD), or a mass spectrometer (MS) [11-16]. Although Loh et al [17] reported that the use of temperatures above 280oC permits quantitative tebuthiuron breakdown, thus permitting the analysis of the products of decomposition formed, methods based on gas chromatography usually involve a derivatization step to permit analysis of this thermal unstable herbicide in its unchanged form [11,12,18]. These methods have been applied to the determination of tebuthiuron residues in soil, foods, and plant material but none of them has been reported for the evaluation of this compound in water. In the present study we describe two methods for tebuthiuron analysis in water samples. The samples were first analyzed by HPLC and the results were confirmed by GC-MS after acetic anhydride derivatization. The methods were applied to the analysis of this herbicide in surface and ground water samples colected from the Espraiado Stream watershed (Ribeirao Preto region, state of Sao Paulo, Brazil). This watershed represents one of the reloading points of the Botucatu ground water table, the largest and most important one in the center-south region of Brasil, including eight Brazilian states and parts of Argentina, Uruguay, and Paraguay, and covering an area of approximately 1.200.000 km2 [19]. 650 $acalibration 650 $aenvironmental impact 650 $agroundwater 650 $aherbicides 650 $aquality control 653 $aAnalysis 653 $aContamination 653 $aResidues 700 1 $aLANCHOTE, V. L. 700 1 $aDREOSSI, A. de C. 773 $tJournal of High Resolution Cromatography$gv.22, n.4, p.239-241, 1999.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Registros recuperados : 13 | |
2. | | CERDEIRA, A. L.; PESSOA, M. C. P. Y.; BONATO. P. S.; QUEIROZ, R. H. C.; LANCHOTE, V. L. Metodologia analítica de resíduo do herbicida 2,4-d (ácido 2,4-diclorofenoxiacético) em água em área de cana-de-açúcar. Pesticidas: Revista de Ecotoxicologia e Meio Ambiente, Curitiba, v. 12, p. 99-110, jan./dez. 2002.Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - B |
Biblioteca(s): Embrapa Meio Ambiente. |
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3. | | CERDEIRA, A. L.; GOMES, M. A. F.; QUEIROZ, R. C.; BONATO, P. S.; FERRACINI, V. L.; LANCHOTE, V. L. Herbicide and nitrate residues in surface and groundwater from sugarcane area in Brazil. Bolletino Chimico Farmaceutico, v.138, n.2, p.131, 1999.Biblioteca(s): Embrapa Meio Ambiente. |
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4. | | CERDEIRA, A. L.; PESSOA, M. C. P. Y.; BONATO, P. S.; QUEIROZ, R. H. C.; LANCHOTE, V. L. Resíduos e lixiviação do herbicida picloram em água, em área de cana-de-açúcar. Revista Brasileira de Herbicidas, Brasília, DF, v. 3, n. 1, p. 75-81, 2002.Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - C |
Biblioteca(s): Embrapa Meio Ambiente. |
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6. | | TOZZATO, E.; BONATO, P. S.; CERDEIRA, A. L.; GOMES, M. A. F.; CARVALHO, D.; LANCHOTE, V. L.; QUEIROZ, R. H. C. Method for bioassaying ametryne in water. In: CONGRESS OF PHARMACEUTICAL SCIENCES, 1., 1997,Ribeirao Preto, SP. Bollettino Chimico Farmaceutico, v.136, p.49, 1997. Abstract.Biblioteca(s): Embrapa Meio Ambiente. |
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7. | | CERDEIRA, A. L.; LANCHOTE, V. L.; QUEIROZ, R. C.; BONATO, P. S.; GOMES, M. A. F.; PESSOA, M. C. P. Y.; UETA, J. Herbicides residues in soil and water from sugarcane area in Brazil. In: INTERNATIONAL CONFERENCE ON SUSTAINABLE AGRICULTURE IN TROPICAL AND SUBTROPICAL HIGHLANDS WITH SPECIAL REFERENCE TO LATIN AMERICA, 1998, Rio de Janeiro. Abstracts. Rio de Janeiro: INT / EMBRAPA-CNPS / University of Karlsruhe, 1998. 7 p.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Meio Ambiente. |
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8. | | SANTOS, N. A. G.; LANCHOTE, V. L.; DREOSSI, S. A. C.; GOMES, M. A. F.; CERDEIRA, A. L.; CARVALHO, D.; BONATO, P. S. GC-MS determination of chlorotriazines in aqueous environmental samples. In: CONGRESS OF PHARMACEUTICAL SCIENCES, 1., 1997, Ribeirao Preto, SP. Bolletino Chimico Farmaceutico, v.136, p.131, 1997. Abstract.Biblioteca(s): Embrapa Meio Ambiente. |
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9. | | DREOSSI, S. A. C.; LANCHOTE, V. L.; SANTOS, N. A. G.; CERDEIRA, A. L.; GOMES, M. A. F.; CARVALHO, D.; BONATO, P. S. GC-MS method for the determination of tebuthiuron in water. In: CONGRESS OF PHARMACEUTICAL SCIENCES, 1., 1997, Ribeirao Preto, SP. Bollettino Chimico Farmaceutico,v. 136, p.132, 1997. Abstract.Biblioteca(s): Embrapa Meio Ambiente. |
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10. | | SANTOS, A. C.; LANCHOTE, V. L.; BONATO, P. S.; QUEIROZ, R. H. C.; SANTOS, N. A. G.; CERDEIRA, A. L.; CARVALHO, D. Quantificação de resíduos do 2,4 D em amostras de água por cromatografia a gás. Revista Brasileira de Toxicologia, v.6, 1993. Suplemento. n.p.Biblioteca(s): Embrapa Meio Ambiente. |
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11. | | SANTILI, M. B.; LANCHOTE, V. L.; BONATO, P. S.; SANTOS, A. C.; QUEIROZ, R. N. C.; CERDEIRA, A. L.; CARVALHO, D. Quantificação de resíduos de 2,4 D em amostras de água por cromatografia liquida de alta eficiencia. Revista Brasileira de Toxicologia, v.6, 1993. Suplemento. n.p.Biblioteca(s): Embrapa Meio Ambiente. |
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12. | | QUEIROZ, R. H. C.; LANCHOTE, V. L.; BONATO, P. S.; TOZZATO, E.; CARVALHO, D. de; GOMES, M. A.; CERDEIRA, A. L. Determination of ametryn herbicide by bioassay and gas chromatography-mass spectrometry in analysis of residues in drinking water. Bolletino Chimico Farmaceutico, v.138, n.5, p.251-254, 1999.Biblioteca(s): Embrapa Meio Ambiente. |
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13. | | SANTOS, N. A. G.; BONATO, P. S.; DREOSSI, S. A. C.; GOMES, M. A. F.; CERDEIRA, A. L.; CARVALHO, D.; LANCHOTE, V. L. Multiresidue method for the analysis of herbicides in surface and groundwater. In: CONGRESS OF PHARMACEUTICAL SCIENCES, 1., 1997, Ribeirao Preto, SP. Bolletino Chimico Farmaceutico, v.136, p.133, 1997. Abstract.Biblioteca(s): Embrapa Meio Ambiente. |
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Registros recuperados : 13 | |
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Nenhum registro encontrado para a expressão de busca informada. |
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