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| Registros recuperados : 256 | |
| Registros recuperados : 256 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Clima Temperado. Para informações adicionais entre em contato com cpact.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Clima Temperado; Embrapa Meio Ambiente. |
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Data corrente: |
16/07/2014 |
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Data da última atualização: |
19/12/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
ASSALIN, M. R.; QUEIROZ, S. C. do N. de; FERRACINI, V. L.; OLIVEIRA, T.; VILHENA, E.; MATTOS, M. L. T. |
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Afiliação: |
MARCIA REGINA ASSALIN, CNPMA; SONIA CLAUDIA DO N DE QUEIROZ, CNPMA; VERA LUCIA FERRACINI, CNPMA; TACIANA OLIVEIRA, CNPQ; EDER VILHENA, FAJ; MARIA LAURA TURINO MATTOS, CPACT. |
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Título: |
A method for determination of imazapic and imazethapyr residues in soil using an ultrasonic assisted extraction and LC-MS/MS. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Bulletin of Environmental Contamination and Toxicology, California, v. 93, n. 3, p. 362-364, 2014. |
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DOI: |
10.1007/s00128-014-1330-6 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract At least 52 % of the planted rice area in Rio Grande do Sul, a major rice producing state in Brazil, employs Clearfield Ò production system, corresponding to 580,000 ha of cultivated area. To grow rice with Clear- field Ò technology, producers combine imazethapyr and imazapic herbicides. However, these herbicides leave residual activity in soil; consequently, the repeated appli- cation of imazethapyr and imazapic on Brazilian Clear- field Ò rice fields has increased these herbicides persistence in treated soils. In this study, a method has been developed for removal and quantification of imazethapyr and imaza- pic residues in soil through ultrasonic assisted extraction using methanol?phosphoric acid aqueous solution (pH 2.0). The detected response was linear for both herbicides within the range of 0.25?5 ng mL -1 with correlations coefficients [0.99. The quantification limit was limit of quantification 0.2 lg Kg -1 for both pesticides. The good recovery rate from all pesticides, which ranges between 70 % and 120 %, demonstrates the method?s validity. |
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Palavras-Chave: |
Clearfield production system; Imidazolinone; Residue analysis. |
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Thesagro: |
Análise química; Cromatografia; Herbicida; Poluição ambiental; Resíduo químico; Solo. |
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Thesaurus NAL: |
Chemical analysis; Imidazolinone herbicides; Liquid chromatography; Mass spectrometry; Multiresidue analysis; soil; Soil pollution. |
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Categoria do assunto: |
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P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02286naa a2200385 a 4500
001 2003358
005 2014-12-19
008 2014 bl uuuu u00u1 u #d
024 7 $a10.1007/s00128-014-1330-6$2DOI
100 1 $aASSALIN, M. R.
245 $aA method for determination of imazapic and imazethapyr residues in soil using an ultrasonic assisted extraction and LC-MS/MS.$h[electronic resource]
260 $c2014
520 $aAbstract At least 52 % of the planted rice area in Rio Grande do Sul, a major rice producing state in Brazil, employs Clearfield Ò production system, corresponding to 580,000 ha of cultivated area. To grow rice with Clear- field Ò technology, producers combine imazethapyr and imazapic herbicides. However, these herbicides leave residual activity in soil; consequently, the repeated appli- cation of imazethapyr and imazapic on Brazilian Clear- field Ò rice fields has increased these herbicides persistence in treated soils. In this study, a method has been developed for removal and quantification of imazethapyr and imaza- pic residues in soil through ultrasonic assisted extraction using methanol?phosphoric acid aqueous solution (pH 2.0). The detected response was linear for both herbicides within the range of 0.25?5 ng mL -1 with correlations coefficients [0.99. The quantification limit was limit of quantification 0.2 lg Kg -1 for both pesticides. The good recovery rate from all pesticides, which ranges between 70 % and 120 %, demonstrates the method?s validity.
650 $aChemical analysis
650 $aImidazolinone herbicides
650 $aLiquid chromatography
650 $aMass spectrometry
650 $aMultiresidue analysis
650 $asoil
650 $aSoil pollution
650 $aAnálise química
650 $aCromatografia
650 $aHerbicida
650 $aPoluição ambiental
650 $aResíduo químico
650 $aSolo
653 $aClearfield production system
653 $aImidazolinone
653 $aResidue analysis
700 1 $aQUEIROZ, S. C. do N. de
700 1 $aFERRACINI, V. L.
700 1 $aOLIVEIRA, T.
700 1 $aVILHENA, E.
700 1 $aMATTOS, M. L. T.
773 $tBulletin of Environmental Contamination and Toxicology, California$gv. 93, n. 3, p. 362-364, 2014.
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Embrapa Meio Ambiente (CNPMA) |
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