A spectrocolorimetric study on the effect of ultraviolet irradiation of four tropical hardwoods.

@article{Pastore2004ASS,
  title={A spectrocolorimetric study on the effect of ultraviolet irradiation of four tropical hardwoods.},
  author={Tereza Cristina Monteiro Pastore and Kelly Oliveira Santos and Joel C. Rubim},
  journal={Bioresource technology},
  year={2004},
  volume={93 1},
  pages={37-42}
}
Colour modifications caused by exposure to artificial UV radiation (350 nm, UV-A) of four tropical hardwoods, jatobá, angelim vermelho, garapeira, and marupá, have been evaluated by diffuse reflectance spectroscopy and by the CIE-L*a*b* system. To obtain the absorption maxima of the chromophore species formed during UV irradiation, Kubelka-Munk (K-M) difference spectra (non-irradiated-irradiated) have been recorded as a function of exposure time. The K-M difference spectra have shown that the… CONTINUE READING
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