Determinação espectrofotométrica por injeção em fluxo de glifosato em formulações comerciais de herbicidas

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T14:21:01Z
dc.date.available2014-05-20T14:21:01Z
dc.date.created2014-05-20T14:21:01Z
dc.date.issued2012-01-01
dc.identifierQuímica Nova. Sociedade Brasileira de Química, v. 35, n. 1, p. 114-118, 2012.
dc.identifier0100-4042
dc.identifierhttp://hdl.handle.net/11449/26296
dc.identifier10.1590/S0100-40422012000100021
dc.identifierS0100-40422012000100021
dc.identifierWOS:000300963000021
dc.identifierS0100-40422012000100021.pdf
dc.identifier5978908591853524
dc.identifier3192125098361121
dc.identifier0000-0003-0197-7369
dc.description.abstractA flow injection spectrophotometric procedure for the determination of glyphosate in commercial formulations of herbicides is proposed. The determination is based on the reaction of glyphosate and p-dimethylaminocinnamaldehyde, in acid medium, yielding a colored compound (l máx = 495 nm). Under optimal conditions, Beer's law is obeyed in a concentration range 40-640 mg mL-1 with a correlation coefficient of 0.9996. The detection limit was 8.60 mg mL-1 for glyphosate. The method was successfully applied for the determination of glyphosate in commercial formulations of herbicides. Recovery of glyphosate from various commercial samples of herbicides range from 91.0 to 110%.
dc.languagepor
dc.publisherSociedade Brasileira de Química
dc.relationQuímica Nova
dc.relation0.646
dc.relation0,255
dc.rightsAcesso aberto
dc.sourceSciELO
dc.subjectglyphosate
dc.subjectherbicides
dc.subjectflow injection analysis
dc.titleDeterminação espectrofotométrica por injeção em fluxo de glifosato em formulações comerciais de herbicidas
dc.typeArtículos de revistas


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