2010
DOI: 10.1016/j.vibspec.2010.07.009
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Sensing of 2,4-dichlorophenoxyacetic acid by surface-enhanced Raman scattering

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Cited by 10 publications
(10 citation statements)
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“…By contrast the SLIPSERS spectra shown in Figure 3 show considerable variation. This behaviour is well-known in SERS spectra obtained from dried colloid solutions (Costa et al, 2010). The spectra recorded at 10 À11 M and 10 À12 M show good agreement with each other (and with the spectra in Figure 3), but the 10 À13 M and 10 À14 M spectra have a very different set of enhanced bands.…”
Section: Slipsers Analysis Of Brodifacoumsupporting
confidence: 82%
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“…By contrast the SLIPSERS spectra shown in Figure 3 show considerable variation. This behaviour is well-known in SERS spectra obtained from dried colloid solutions (Costa et al, 2010). The spectra recorded at 10 À11 M and 10 À12 M show good agreement with each other (and with the spectra in Figure 3), but the 10 À13 M and 10 À14 M spectra have a very different set of enhanced bands.…”
Section: Slipsers Analysis Of Brodifacoumsupporting
confidence: 82%
“…The linear and single molecule regions were also observed for the SERS of 2,4-dichlorophenoxyacetic acid (Costa et al, 2010). Costa et al employed a bi-layer gold substrate (gold nanoparticles with a second layer gold deposited from tetrachloroauric acid), in their work the cross-over from linear to single molecule region was observed at 10 À8 M, thus it appears that the controlled drying employed by the SLIPS substrate might be capable of extending the linear SERS response to lower concentrations.…”
Section: Slipsers Analysis Of Brodifacoummentioning
confidence: 84%
“…O produto de oxidação da atrazina compatível com as mudanças observadas no espectro SERS em potenciais positivos é ácido cianúrico (1) que está presente na forma do tautômero ceto em equilíbrio com o tautômero enol (2) (Socrates, 2001). Em potenciais mais positivos que + 0,3 V o sinal SERS foi perdido, impossibilitando assim seu registro.…”
Section: Número De Ondaunclassified
“…Dessa maneira, o foco deste estudo recai sobre a investigação de aspectos do comportamento químico e fotoquímico de compostos considerados desreguladores endócrinos através de técnicas espectroscópicas (vibracionais e eletrônicas) e eletroquímicas. Os compostos investigados incluem o difenilalcano bisfenol A (BPA), os herbicidas triazínicos ametrina e atrazina, e os compostos organoclorados ácido 2,4-diclorofenoxiacético (2,4-D) e 2,4-diclorofenol (2,.…”
Section: Considerações Finaisunclassified
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