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The European Physical Journal Special Topics

, Volume 153, Issue 1, pp 523–526 | Cite as

Photoacoustic investigation of copaiba oil

  • J. G. Santos
  • L. B. Silveira
  • L. Olenka
  • A. C. Oliveira
  • A. F.R. Rodriguez
  • V. Garg
  • A. C. Bento
  • R. G. Oliveira
  • P. C. Morais
Article

Abstract.

In this study we demonstrate the usefulness of the Photoacoustic Spectroscopy (PAS) in the investigation of copaiba oil obtained from Copaifera tree, located in a site within Rondônia State, Amazon region, Brazil. Pure copaiba oil sample was diluted in 98% ethanol providing 10 different samples at volume concentration in the range of 5 to 50% vv. The observed photoacoustic spectral features from pure copaiba oil and the corresponding diluted samples, in the 0.18 to 4.00 μm wavelength region, are discussed in terms of five distinct bands (C, S, L, K, and X bands). Photoacoustic peak intensity was investigated as a function of the copaiba oil concentration in the 5 to 50% v.v.

Keywords

European Physical Journal Special Topic Bento Photoacoustic Spectroscopy Cervicitis Kaurene 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2008

Authors and Affiliations

  • J. G. Santos
    • 1
  • L. B. Silveira
    • 1
  • L. Olenka
    • 1
  • A. C. Oliveira
    • 2
  • A. F.R. Rodriguez
    • 2
  • V. Garg
    • 2
  • A. C. Bento
    • 3
  • R. G. Oliveira
    • 3
  • P. C. Morais
    • 2
  1. 1.Departamento de Ciências Exatas e da NaturezaFundação Universidade Federal de RondôniaJi-Paraná ROBrazil
  2. 2.Universidade de Brasília, Instituto de FísicaBrasília DFBrazil
  3. 3.Departamento de FísicaUniversidade Estadual de MaringáMaringá PRBrazil

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