Oregon State University

Axiom SC

Axiom SC at W.M. Keck Collaboratory for Plasma Spectrometry at Oregon State University in Corvallis, Oregon.The Axiom was installed in June 2000. It is typically run with a concentric nebulizer and Gilson 222 autosampler, but an inert spray chamber and demountable torch are also available. The magnetic sector and fully adjustable slits allow for a resolution range of 400 to 15,000 resolving power (RP) for automated runs. A RP of >25,000 has been attained with manual acquisition. This high resolving power (high resolution) allows for complete separation of analytes from interfering molecular species. Examples of these include: Fe-56 from ArO, V-51 from ClO, and Eu-151 from BaO. The Axiom also has very high sensitivity (up to 4 * E6 cps/ppb In at the lowest resolution, RP=400) and therefore has an operating range depending on element of 100 ppq to 1 ppb at low resolution (RP=400)