Welcome to the Stable Isotope Geochemistry Laboratory
The Stable Isotope Geochemistry Laboratory (SIGL) in Earth Sciences at the University of Queensland, Australia has one of the most comprehensive laboratories in the southern hemisphere, with a full suite of equipment covering the complete cycle from preparation to analysis of the stable isotopes in geological and environmental samples.
Established in 1960 the laboratory has strong connections with both industry and government combined with an exemplary record of academic research. The laboratory is housed in the Richards building on the Great Court and is located in what was the original Geology museum.
Liquid, solid and gaseous samples can be analysed for the light stable isotope elements (C, H, O, N, S).
Current stable isotopic analyses available:
. O and H in water and biological fluids (e.g. urines for DLW studies)
. O and H on mineral separates and quartz chips (fluid inclusions)
. 13C -DIC in water (dissolved inorganic carbon)
. C and O on carbonates, corals, forams (online and offline preparation systems)
. C, N and S on biological materials (plant and animal tissue)
. 34S and 33S (MIF) on geological samples (sulfides, sulfates, hydrocarbons)
. C on geological samples and hydrocarbons (coals)
. O on sulfates
. C and H on mixed gases (CH4, CO2, CO and H)
A Dual inlet Isotope Ratio Mass Spectrometer (IRMS) is used for H and O on waters and C and O on carbonates as this instrumentation is still the industry gold standard and provides the most precise and accurate data. All other analyses are performed using three continuous flow IRMS instruments, which are coupled to elemental analysers, GCs and a Gas Bench. Services are offered to researchers and commercial entities.
Laboratory Manager: Kim Baublys phone: 07 3365 3464
email enquiries: sigl@uq.edu.au Laboratory phone: 07 3365 1131
