Picture of John Ortega
Professional Research Associate, SIL
• Analysis of stable isotopes

Stable Isotope Lab

Field and laboratory observations of trace atmospheric gases related to atmospheric chemistry, greenhouse gases and stable isotopes.

Specialties include Mass spectrometry (quadupole, PTR-MS, other CIMs, Isotope Ratio), gas chromatography, instrument development, LabVIEW instrument control, particle size distributions.


  • PhD: University of Colorado, 2006
  • MS: University of New Mexico, 1992
  • BS: University of California, Santa Barbara, 1989