Triton

Triton TI

triton

What is TIMS?

Thermal-ionization mass-spectrometry (TIMS) is the most precise technique for isotope composition determination. Applying TIMS for positive (PTIMS) or negative (NTIMS) ions it is possible to analyze relative abundance of isotopes of alkaline, alkali-earth, rare earth elements, Platinum group elements, Uranium, Thorium, Lead, transuranium elements etc. Both PTIMS and NTIMS allow to study isotope composition variability caused by different processes in Terrestrial and Space objects. The main virtues of these analytical techniques are simplicity and unambiguity of interpretation of muss spectra, high precision and outstanding sensitivity, as well as absence of multiply - charged ions.

The TRITON-TI. An overview.

The Triton-TI instrument is one of the latest achievements of FinniganMAT in the area of construction of multi-collector of thermal ionization mass spectrometers. It is capable to work in both PTIMS and NTIMS modes. Its main parts are ions source with 21-sample turret, 51 cm analyzing magnet and 9 Faraday cups plus secondary electron multiplier detector (all equipped with the corresponding amplifiers). Ions current detectors have expanded linearity interval from 0 to 50 volts. The instrument is equipped with variable focus ion optics and has the system allowing swapping the order of connection of Faraday cups and amplifiers. All the instrument's systems are controlled via computer. The Triton-TI can carry out analysis in completely automatic mode. Applying the instrument it is possible to analyze samples of nano-gram weight with high precision. The measured results reproducibility on Sr and Nd standards lies within 5-ppm range.

The problems we can solve with the Triton-TI

Make possible identification of source of matter in rocks and ores at level of crust, mantle and their mixtures, establishing of links between a rock and ore formation and genetic relations between rocks. On the bases of such isotope data it is possible to solve a wide variety of problems. Particularly isotope composition of Sr in marine carbonates can be used in stratigraphy for correlation of non-fossiliferous sediments while Pb isotope composition in polymetallic deposits helps to estimate a deposits scale.

For additional information about the instrument please follow: ThermoQuest Finnigan Finnigan logo