You are using an outdated browser. Please upgrade your browser to improve your experience.

Stable Isotope Lab

The Stable Isotope Lab (ENRI SIL) is a state-of-the-art analytical facility that quantifies stable isotope ratios to assist researchers studying processes on short and long time scales. The lab utilizes two ThermoFinnigan Continuous Flow Isotope Ratio Mass Spectrometers (Delta Plus XP and Delta Advantage V) with four gas preparation systems for the measurement of the stable isotopes of hydrogen, carbon, nitrogen, oxygen and sulfur (δD, δ13C, δ15N, δ18O and δ34S) on a diversity of natural samples (plant, animal, soil, sediment, water, and atmospheric gas). The lab also employs three Picarro Wavelength Scanned Cavity Ring-Down Spectrometers for the measurement of the stable isotopes of hydrogen and oxygen in liquid water samples.  The lab is currently capable of accommodating natural abundance samples for all the species mentioned above. ENRI SIL is also able to analyze liquid water samples enriched in δD, δ18O or both.

Operations are conducted by lab managers and research analysts Annie Brownlee and John Ferguson. To contact the Stable Isotope Lab, please email