Analytical services

Our group offers measurement service contracts for those interested in high-precision gas isotope measurements. Depending on the nature of your request, we are able to accomodate various sizes and containers. We also offer the option of sending evacuated sampling equipment, tubing, and instructional material for routine sampling of groundwater or seawater. Please reach out to us with any questions, and we'll be happy to work with you to find a good way to meet the specific needs of your project. 


If you are interested in measurements of dissolved He isotopes and/or He, Ne, Ar, Kr, and Xe abundances (collected in order-10 mL copper tube samples), please visit the WHOI IGF page.  Please note that we are in the process of merging the two noble gas facilities, and pricing is subject to change, but please reach out and we'll do our best to find a way to meet your analytical needs.

We are currently able to measure isotopic and elemental ratios involving the following isotopes: 


Argon (0.005-0.015‰): 40Ar, 38Ar, 36Ar

Krypton (0.015-0.03‰): 86Kr, 84Kr, 82Kr

Xenon (0.02-0.2‰): 136Xe, 134Xe, 132Xe, 131Xe, 130Xe, 129Xe, 128Xe

Nitrogen (0.005-0.01‰): 29N2, 28N2

Elemental ratios (0.25-1‰): N2/Ar, Kr/Ar, Xe/Ar

(a rough estimate of our lab's 1σ precision range for isotope ratios is provided in parentheses next to each gas above. This range varies as a function of the isotopes involved and composition of the sample [e.g., air vs. water vs. volcanic gas].)