Finnigan Element2 HR-ICP-MS
The high resolution single collector ICP-MS (HR-ICP-MS), a Finnigan Element2, is capable of analyzing elements in solution at concentrations as low as parts per quadrillion (see table above) and has a dynamic range of over 9 orders of magnitude. The Element2 is a double focussing, reverse Nier-Johnson geometry spectrometer with 3 selectable mass resolutions (M/ ΔM of 400, 3000 and 10,000). By using increased resolution, most isobaric interferences can be resolved during the analysis, minimizing the need for extensive sample processing. At low resolution the Element2 has a sensitivity of >1.5x10e9 counts/ppm at 115Indium.
Combined with the New Wave UP-213 laser ablation system, the Element2 is a powerful tool for the in-situ determination of trace elements in individual crystals and U-Pb ages of zircons. Currently we are able to determine U-Pb zircon ages with about 2-3% accuracy and precision with a 35 second laser analysis and using a 30 micron spot size.
When used with the Aridus desolvating nebulizer, the Element2 can be used for determination of REEs in small samples, or samples with low REE abundances. A Cetac ASX-100 auto-sampler is available for automated sequences along with a HEPA-filtered work enclosure for minimization of environmental contamination to samples.