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School of the Environment

Finnigan MAT IRMS

irms02The GeoAnalytical Laboratory houses a Finnigan Delta S gas source isotope ratio mass spectrometer.  The instrument is applied to measure the oxygen isotope ratio of solid geologic materials using a high-vacuum laser fluorination line for the extraction of oxygen from silicate and oxide minerals.  Samples as small as 1 mg can be analyzed with a precision of better than 0.05 per mil.  We do not currently provide light stable isotope ratio analyses as a service, but special projects and/or access to the instrument can be arranged through Dr. Peter Larson.

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Contact us

Peter Hooper GeoAnalytical Lab
School of the Environment
Webster 1228
Washington State University
Pullman, WA 99164-2812

Phone:509-335-1626
Fax: 509-335-3700
E-mail: geolab@wsu.edu