The use of tunable diode laser absorption spectroscopy for rapid measurements of the delta13C of animal breath for physiological and ecological studies.

@article{Engel2009TheUO,
  title={The use of tunable diode laser absorption spectroscopy for rapid measurements of the delta13C of animal breath for physiological and ecological studies.},
  author={Sophia Engel and Hilary M. Lease and Nathan G. McDowell and Alyssa H Corbett and Blair O Wolf},
  journal={Rapid communications in mass spectrometry : RCM},
  year={2009},
  volume={23 9},
  pages={1281-6}
}
In this study we introduce the use of tunable diode laser absorption spectroscopy (TDLAS) as a technique for making measurements of the delta13C of animal 'breath' in near real time. The carbon isotope ratios (delta13C) of breath CO2 trace the carbon source of the materials being metabolized, which can provide insight into the use of specific food resources, e.g. those derived from plants using C3 versus C4 or CAM photosynthetic pathways. For physiological studies, labeled substrates and breath… CONTINUE READING

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In Albuquerque , NM : Sevilleta Long Term Ecological Research Site

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