The Wolfson Stable Isotope Ratio Mass Spectrometry (IRMS) facility supports in-house research, as well as academic and commercial services in environmental, paleoenvironmental, biological, archaeological and geological research. The Wolfson Laboratory is located within the School of GeoSciences, at the University of Edinburgh. We are an established stable isotope laboratory and have a long-standing expertise in carbonate analysis (including corals, bulk carbonate, foraminifera and ostracods), providing traditional stable carbon and oxygen isotope data. Additionally, we provide users with traditional carbon and nitrogen isotope data using an elemental analyser. We specialise in bespoke low concentration nitrous oxide analysis from sea water samples, we utilise the denitrifier method to translate dissolved nitrate with facultative denitrifying bacteria into nitrous oxide for isotopic analysis. The laboratory was partially funded by the Wolfson Foundation when it was set up in 1996. The facility now has three gas source isotope ratio mass spectrometers. Contact the Wolfson Laboratory Contact details and information on access to the facility for staff, students and visitors. Instrument capabilities and specification Our facility houses three gas source isotope ratio mass spectrometers (IRMS) with various interfaces. Small Research Facility (SRF)Our Wolfson Laboratory is operated as a Small Research Facility (SRF).A Small Research Facility (SRF) is a facility or service provided by the School and used for research and teaching. They are also available for use by the wider community such as external academic or commercial use. Our SRF's are available for hire or on a consultancy basis. These charges are recognised by grant funders and can therefore form part of a grant submission.Explore our Small Research Facilities (SRF) This article was published on 2024-07-01