Multicollector mass spectrometer for isotopes

Commissioned in early 2008, this facility consists of a Nu Instruments TM multi-collector ICPMS equipped with a deep UV excimer laser model G2, built by Photon Machines TM, for analysis of isotopic systems in solids. The instrument also has a desolvating nebulizer, for analysis of isotopes in liquids.

Methodologies in use include:

  • Age dating – in situ U-Pb
  • Zircon, monazite, titanite, xenotime
  • Sulfur & copper isotopes – in situ on sulfides
  • Li, Mg, Sr, Pb, U – on waters and single element solutions
  • Sr isotopes – in situ on plagioclase
  • Pb isotopes – in situ on K-spar, sulfides, tellurides
  • Hf isotopes – in situ on zircon
  • U series – on single element solutions