Stable Isotope Facility

Core Facilities

Welcome to the University of Wyoming Stable Isotope Facility (UWYOSIF).
Located on the University of Wyoming campus, UWYOSIF specializes in the analysis of light stable isotopes of carbon, nitrogen, sulfur, oxygen, and hydrogen. We support researchers and organizations worldwide, including University of Wyoming researchers, external academic institutions, government agencies, and commercial partners.  UWYOSIF provides high-quality analytical services, fostering cutting-edge research across a variety of disciplines. 

World Class Facility

UWYOSIF provides a team of experts who support research and analysis using stable isotope techniques. Whether you're collaborating on a project, submitting samples or seeking guidance, we're here to help connect you with the right personnel. Our team is committed to delivering high-quality analytical services and fostering cutting-edge research across a variety of disciplines. Get started by exploring our resources below.

 

Laboratory technicians working in a lab.  Two people are working to gether at a desk and another is in the background working on a scientific instrument.

Raw numbers

UWYOSIF is a key part of providing cutting edge analyses to the University of Wyoming and beyond.  

255
Number of Users Served
123982
Number of Samples Run Since 2017
17
Years in Service
Isotopic Clues Explain the Andes Uplift

Carbonates, components of rock, found in sediments from the Andes were collected and analyzed. The stable isotope signatures of carbon and oxygen help reveal the history of uplift in the Andes.

Isotopes Shows Early Diet Matters for Sage-Grouse Chicks

Stable isotope nitrogen analysis of sage-grouse chick feathers revealed how early diet influences growth, with greater plant-derived nitrogen linked to heavier chicks and improved early development.

Photo: BLM Idaho Gerrit Vyn

Isotopes Reveal Why Coyotes are Attacking Humans

Carbon and nitrogen stable isotope values from coyote whiskers show that most coyotes in the area rely on moose.  The attacks were linked to unusual ecological conditions and not habituation to humans.

Photo: USFWS

Isotope Patterns Help Manage Wyoming Lakes

Stable isotope patterns reveal where and how much stocked salmon was consumed by lake trout in New North Fork Lakes.  Giving managers a clearer picture of predator feeding to help protect stocked fish.

Photo: USFWS

Scientist holding the heart of the instrument composed of metal plates
Stable Isotope Data Powering Research

UWYOSIF produces highly reliable, high-quality stable isotope data that underpin innovative research across disciplines. Researchers use our data to answer novel questions and publish impactful, peer-reviewed studies.