Stable isotopes laboratory of the Geotop center at UQAM

Université du Québec à Montréal, Montréal, Québec
What the facility does

Isotopic geochemistry

Areas of expertise

The laboratory’s customers are from fields such as geology, biology, environment, geography and kinanthropology. The laboratory’s mission in the field of stable isotopes has been threefold for more than 30 years. Its mission is now to train undergraduate and graduate students, participate in cutting-edge research and provide service to external customers. Specifically, the laboratory performs analyses of stable isotopes of hydrogen (1H, 2H), oxygen (16O, 17O, 18O), carbon (12C, 13C), nitrogen (14N, 15N) and sulfur (32S, 34S) on a variety of organic and inorganic samples. The laboratory’s main projects are numerous: paleoclimatology, physical effort, ocean biogeochemistry, ocean circulation, hydraulic and biogeochemical tracing in big rivers, carbon cycle in peat bogs, soil biogeochemistry, paleonutrition, ancient population movement, detection of agri-food fraud, etc.

Research services

Isotopic analysis

Sectors of application
  • Agriculture, animal science and food
  • Environmental technologies and related services
  • Fisheries and aquaculture
  • Forestry and forest-based industries
  • Mining, minerals and metals

Specialized lab



Geotop – Stable isotopes - UQAM

Isoprime DI with AquaPrep

d2H and d18 analysis of water


Isoprime 100 with Microgas

d13C analysis of dissolved inorganic carbon and exhaled CO2


Labconco freeze dryer

Freeze drying samples


High-precision Sartorius microbalance

Weigh samples in a range from milligrams to micrograms


Los Gatos Research: Liquid Water Isotope Analyzer

Analyze water levels in 160, 170 and 180


Isoprime 100 with Vario MicroCube

d13C and d15N analysis of solid samples by combustion (elementary analysis)


Isoprime DI with MultiCarb

d13C and d18O analysis of microsamples of carbonate


Isoprime Vision with Vario PyroCube

d13C, d15N and d34S analysis of solid samples by combustion (elementary analysis). d18O analysis of solid samples by pyrolyse

  • Hydro-Québec
  • International Atomic Energy Agency
  • Centre ACER
  • Institut National de Recherche en Agronomie (France)
  • WSP Canada