Thermo Scientific XSeries 2 ICPMS
The Thermo Scientific XSeries 2 ICPMS (Inductively Coupled Plasma Mass Spectrometer)
is a state of the art instrument that allows for multi-elemental analysis of a variety
of samples from a wide range of applications and sample matrices. The instrument features
automated torch positioning that ensures consistent results as well as an off-axis
quadrupole that provides high signal-to-noise ratio. Detection limits are enhanced
by the Xt Interface which minimizes polyatomic species in complex matrices. Typically,
elements can be measured in the parts per billion (ppb) range and some as low as the
parts per trillion (ppt) range. Solution samples are required for analysis and are
normally dissolved/digested for proper detection. Solid samples, such as plant tissue
or soil samples, are digested in a CEM Mars Xpress Microwave. A modified EPA method,
based on nitric acid as the solvent/extractor, is used for sample preparation. An
autosampler that is capable of analyzing 240 samples is also attached to the instrument
to increase sample throughput. Typical dry mass of sample required for analysis is
0.15g, though this is variable depending on the element of interest and the expected
concentration.