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2. | | NOVELINO, J. O.; LEITE, P. da C.; PROENCA, S. S.; SILVA, M. L. da. Caracteristicas químicas de dois latossolos de Dourados-MS, submetidos a aplicação de pó de basalto. IN: CONGRESSO BRASILEIRO DE CIÊNÇIA DO SOLO, 25., 1995, Viçosa, MG. Resumos expandidos. Viçosa: UFV, 1995. v.3, p. 1334-1335. Biblioteca(s): Embrapa Cerrados; Embrapa Tabuleiros Costeiros. |
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3. | | LEITE, P. da C.; FREITAS, J. de A. D. de; NOVELINO, J. O.; BARROS, N. F. de. Efeito do sombreamento, desfolha e adubação no crescimento de mudas de Eucalyptus camaldulensis. IN: CONGRESSO BRASILEIRO DE CIÊNÇIA DO SOLO, 25., 1995, Viçosa, MG. Resumos expandidos. Viçosa: UFV, 1995, v.2, p. 854-855. Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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Registros recuperados : 3 | |
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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
Biblioteca(s): |
Embrapa Clima Temperado; Embrapa Meio Ambiente. |
Data corrente: |
16/07/2014 |
Data da última atualização: |
19/12/2014 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
ASSALIN, M. R.; QUEIROZ, S. C. do N. de; FERRACINI, V. L.; OLIVEIRA, T.; VILHENA, E.; MATTOS, M. L. T. |
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. |
Título: |
A method for determination of imazapic and imazethapyr residues in soil using an ultrasonic assisted extraction and LC-MS/MS. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Bulletin of Environmental Contamination and Toxicology, California, v. 93, n. 3, p. 362-364, 2014. |
DOI: |
10.1007/s00128-014-1330-6 |
Idioma: |
Inglês |
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. |
Palavras-Chave: |
Clearfield production system; Imidazolinone; Residue analysis. |
Thesagro: |
Análise química; Cromatografia; Herbicida; Poluição ambiental; Resíduo químico; Solo. |
Thesaurus NAL: |
Chemical analysis; Imidazolinone herbicides; Liquid chromatography; Mass spectrometry; Multiresidue analysis; soil; Soil pollution. |
Categoria do assunto: |
-- P Recursos Naturais, Ciências Ambientais e da Terra |
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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