Thermal Ionisation Mass Spectrometry (TIMS)
RSES has a number of thermal ionisation mass spectrometers available for high quality isotope ratio measurements. TIMS measurements are supported by a purpose-built, clean laboratory with specifically designated areas for all levels of classical and non-standard dissolution and chemical extraction procedures. The Finnigan MAT261 and TRITON multi-collector mass spectrometers are currently in use for boron, Sm, Nd, and Sr, but RSES has considerable local experience in U, Th and Pb isotopic analyses. Osmium and Th isotopic analyses are performed using a purpose-built instrument.