Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1045321
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dc.contributor.authorOKUMURA, F.pt_BR
dc.contributor.authorAMARAL, R. B.pt_BR
dc.contributor.authorORESTES, E.pt_BR
dc.contributor.authorSILVA, A. B. F.pt_BR
dc.contributor.authorMAZO, L. H.pt_BR
dc.date.accessioned2016-05-19T11:11:11Zpt_BR
dc.date.available2016-05-19T11:11:11Zpt_BR
dc.date.created2016-05-19pt_BR
dc.date.issued2016pt_BR
dc.identifier.citationJournal of the Brazilian Chemical Society, v. 27, n. 5, p. 925-932, 2016.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1045321pt_BR
dc.descriptionThis work describes an electrochemical and quantum chemical investigation of the fipronil insecticide. Cyclic voltammetry (CV) and square wave voltammetry (SWV) experiments were performed over a graphite-polyurethane (GPU) composite electrode. The fipronil molecule presents an one?electron irreversible oxidation reaction. Profiting the SWV signal a square wave stripping voltammetry (SWSV) procedure to determine the fipronil molecule in a 0.10 mol L-1 Britton-Robinson buffer solution, pH 8.0 was developed with accumulation potential and time of 0.50 V and 120 s, respectively. The limits of detection and quantification were 0.80 and 2.67 ?g L-1, respectively. Recovery tests were performed in three natural waters samples with values ranging from 99.67 to 101.37%. Quantum chemical studies showed that the nitrogen atom of the pyrazole group is the most probable oxidation site of the fipronil molecule.pt_BR
dc.language.isoporpt_BR
dc.rightsopenAccesspt_BR
dc.titleElectrochemical and quantum chemical investigations of the insecticide fipronil.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2016-09-06T11:11:11Zpt_BR
dc.subject.thesagroQuímicapt_BR
riaa.ainfo.id1045321pt_BR
riaa.ainfo.lastupdate2016-09-06pt_BR
dc.identifier.doi10.5935/0103-5053.20150347pt_BR
dc.contributor.institutionFABIANO OKUMURA, CNPMS; Raquel B. Amaral, Universidade de São Paulo; Ednilsom Orestes, Universidade Federal Fluminense; Albérico B. F. Silva, Universidade de São Paulo; Luiz Henrique Mazo, Universidade de São Paulo.pt_BR
Aparece nas coleções:Artigo em periódico indexado (CNPMS)

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