Quadrupole ICP-MS

The ICP-MS Laboratory is home to a VG Elemental PlasmaQuad II+, used for trace metal concentration analyses and moderate precision isotope ratio studies.

The VG PlasmaQuads are among the most widely-used quadrupole ICP-MS instruments in the world. These instruments combine an ICP source, a quadrupole mass analyzer and a channeltron detector. This configuration facilitates the analysis of trace metals in samples at sub-ppb levels. Isotopic compositions can be determined to 0.1 - 1% RSD for isotope dilution analysis or stable isotope tracer studies.

The PlasmaQuad II+ installed at Rochester is a reconditioned unit of early 1990's vintage, equipped with a new High Performance Interface (HPI). It was installed in January, 1998.

The photo shows the instrument in the ICP-MS Laboratory. The quadrupole and lens controls are to the left, and the plasma RF generator is to the right.


 Film Clips!

 Ion Trajectory

Ion's-eye View


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