2014
DOI: 10.4322/polimeros.2014.029
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Avaliação do efeito da Moagem no desempenho e na caracterização DRIFT-NIR de microbicidas na superfície de tintas comerciais

Abstract: Resumo: Neste trabalho, é mostrada a avaliação da técnica FT-IR, refletância difusa (DRIFT), na região NIR (DRIFT/ NIR) para a caracterização de OIT, carbendazim e diuron em composições de tintas acrílicas, contendo esses microbicidas moídos e reduzidos a tamanhos de partículas da ordem de 5 µm. A análise DRIFT/NIR indicou bandas analíticas em 6077, 5799, 5681 e 4335 cm -1 para OIT, 4943 e 4435 cm -1 para carbendazim, sendo que a absorção em 4943 cm -1 também pode ser atribuída ao diuron. A presença dos microb… Show more

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(2 citation statements)
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“…FT-IR spectroscopy, coupled with other techniques, either on-line or off-line, has shown good results for the qualitative and quantitative analysis of resins and additives used in paints [11][12][13][14][15] .…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…FT-IR spectroscopy, coupled with other techniques, either on-line or off-line, has shown good results for the qualitative and quantitative analysis of resins and additives used in paints [11][12][13][14][15] .…”
Section: Introductionmentioning
confidence: 99%
“…Another methodology was developed by the same group [14] using the FT-IR technique, DRIFT / NIR, that is, obtaining diffuse reflectance spectra (DRIFT) in the near infrared (NIR) region for the characterisation of n-octylisothiazolinone (OIT), carbendazim and diuron in compositions of acrylic paints containing these milled microbicides reduced to particle sizes in the order of 5 μm. The DRIFT / NIR analysis indicated analytical bands (a term used in infrared spectroscopy to refer to the characteristic absorption of the group whose intensity varies with the concentration, thus obeying the Lambert-Beer Law) for the said microbicides.…”
Section: Introductionmentioning
confidence: 99%