Laser-based trace gas detection of ethane as a result of photo-oxidative damage in chilled cucumber leaves

I.E. Santosa, L.J. Laarhoven, J. Harbinson, S. Driscoll, F.J.M. Harren

Research output: Contribution to journalArticleAcademicpeer-review

11 Citations (Scopus)

Abstract

At low temperatures, high light intensity induces strong photooxidative lipid peroxidation in chilling sensitive cucumber leaves. A sensitive laser-based photoacoustic detector was employed to monitor on-line the evolution of ethane, one of the end products of lipid peroxidation. The Deltav=2 CO laser operated in the 2.62-4.06 mum infrared wavelength region with a maximum intracavity power of 11 W. In combination with an intracavity placed photoacoustic cell the laser was able to detect ethane down to 0.5 part per billion. Cucumber leaf disks chilled in the light produce ethane; the rate of ethane production depends on the applied temperature, light intensity, and period of chilling. (C) 2003 American Institute of Physics.
Original languageEnglish
Pages (from-to)680-683
JournalReview of Scientific Instruments
Volume74
Issue number1
DOIs
Publication statusPublished - 2003

Keywords

  • enhanced photooxidation
  • photoacoustic-spectroscopy
  • oxygen
  • delta-upsilon=2
  • acetaldehyde
  • physiology
  • emission
  • ethylene
  • injury
  • h2o

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