CLIPT Stable Isotope Laboratory

The CLIPT (CLimate Interpretation of Plant Tissue) lab measures carbon, nitrogen, oxygen and hydrogen stable isotopes on geological and biological substrates for the UiO community.

CLIPT lab logo

Booking Analyses

Contact the CLIPT Lab to set up analyses.

See Description of Services for pricing and Sample Submission section for details on preparation and submission process

Contact information: 

Facility Contacts:

William M. Hagopian

Anne Hope Jahren

Tom Andersen

Location: Kristine Bonnevies hus, room 4406, Blindernveien 31, 0316 OSLO, Norway

Description of Services: 

Prices are for internal users (UiO affiliated). External users please contact the CLIPT lab for information and pricing

  • δ13C and δ15N on bulk organic materials: 130 NOK
  • δ13C only on bulk organic materials: 130 NOK
  • δ15N only on bulk organic materials: 130 NOK
  • δ18O or δ2H on bulk organic materials: 130 NOK
  • LC δ13C compound specific analyses: Please contact CLIPT lab for information
  • Note that for some organics, δ13C and δ15N can be performed on the same sample, while for others they must be analyzed separately. Consult with the CLIPT lab for your specific samples.
  • For special samples, such as material on glass filters, sediments, or samples with less than 20 micrograms of C or N, please contact the CLIPT lab for prices

Sample Submission:

  1. Contact the CLIPT lab to discuss your particular sample types.
  2. Download and read through the General Guidelines (word file) for sample submission.
  3. View CLIPT Lab video Episode 4: Sample Preparation for tips on preparing samples.

  4. Download CLIPT Lab Sample ID Form (excel file).
  5. Email completed Sample ID form to CLIPT Lab and arrange for sample delivery.
  6. Fill out Sample Registration Nettskjema.


  • DeltaV Advantage Stable Isotope Mass Spectrometer (ThermoFisher)
  • Flash Elemental Analyzer (ThermoFisher) configured with mass spectrometer
  • LC-Isolink Liquid Chromatograph System (ThermoFisher) configured with mass spectrometer

Ever wonder how a Stable Isotope Mass Spectrometer works? Check out the CLIPT Lab web series for the full set of videos on stable isotope analysis!

Downloads and Links:

About the CLIPT Lab: 

The CLIPT lab is a joint infrastructure facility at UiO shared between the Geoscience and Bioscience departments. It is part of the Centre for Earth Evolution and Dynamics (CEED) and affiliated with the Centre for Biogeochemistry in the Anthropocene (CBA).

CLIPT has been providing high quality stable isotope data to the UiO research community since its official opening in April, 2018. Among its multi-disciplinary user base are geologists, biologists, medical researchers, chemists, and archeologists, with research in the fields of paleoclimatology, Viking history, cancer cell growth, eco-toxicity, biologic trophic studies, resource allocation, and climate change.

Diagram showing research topics
The CLIPT lab supports research from across the scientific spectrum.

The facility currently houses a Thermo Fisher DeltaV Stable Isotope Mass Spectrometer configured with a Flash EA Isolink system capable of high precision carbon, nitrogen, oxygen and hydrogen stable isotope analyses on bulk organic samples.

Additionally, an LC-Isolink System is available for carbon compound specific analysis on water soluble components such as sugars, amino acids and nucleic acids.

Anne Jahren and William Hagopian in the lab
Anne Jahren and William Hagopian inspecting the LC system
Photo: UiO

We welcome visits from interested researchers and students and are available to discuss your stable isotope analytical needs. Contact the CLIPT Lab to set up a meeting or to take a personal tour of the facility.

We are always looking for new ways to improve and expand our capabilities and encourage researchers to contact us about stable isotope analyses they are interested in that are not listed here.

Funding for the CLIPT lab comes from the Research Council of Norway through the Centre for Earth Evolution and Dynamics (CEED). The Institute for Biovitenskap (IBV) has provided lab space and infrastructure support, including instrumentation purchased off of a UiO Infrastructure  grant. 

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Published May 9, 2019 10:03 AM - Last modified Dec. 3, 2020 2:24 PM