The Finland Isotope Geosciences Laboratory (SIGL by its Finnish acronym) is a joint collaboration of Helsinki, Oulu and Turku Universities, Åbo Akademi, Helsinki University of Technology and GTK. The lab features a Nu Instruments multiple-collector inductively coupled plasma mass spectrometer (MC-ICPMS) that provides high precision isotopic measurements of a wide range of elements. Samples are introduced either as solutions using the Nu Instruments desolvating nebulizer or as solids using the New Wave 193 nm deep UV solid-state laser. Accurate determination of isotope ratios is essential in applications ranging from age-dating and fundamental research on earth’s evolution to radioactive waste monitoring and environmental contaminant fingerprinting.
One of the main strengths of the laboratory is its access to a large range of complementary instrumentation, including GTK’s own isotope laboratory, electron beam instrumentation (SEM, MLA and EMP) and the SELFRAG system for rock and ore disaggregation, as well as the NORDSIM ion microprobe facility.