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Innov-X Systems α-4000 Environmental Analyzer XRF Spectrometer (Funded 2007) The Innov-X Systems α-4000 XRF Spectrometer was purchased in 2007 through various funds from the HP, NRM, and Science departments. The XRF allows users relatively (120 sec) rapid inorganic analysis of rock, sediment, soil, paint, alloys, etc. Precision is measured through the use of three NIST soil standards for which there is, on average, less than 10% variance in XRF readings. This XRF unit can either be used in the field or, with the use of the test stand, in the laboratory.