New Mobile Raman Spectroscopy Unlocks Compositional Secrets In Eaf

New Mobile Raman Spectroscopy Unlocks Compositional Secrets In Eaf

Thanks to support from the Grainger Foundation, the Elemental Analysis Facility (EAF) has acquired a new mobile alphaCart Raman system manufactured by Witec (Oxford Instrument).

Raman spectroscopy non-destructively identifies molecules in an object by directing the light produced by a laser onto its surface and measuring the scattered photons that interact with the samples. In Anthropology, this instrument is used to characterize pigments on ceramics or other substrates, determine the nature of certain stones, or identify unknown materials. The instrument comes in a case on wheels that contain the heart of the instrument (the laser) and can travel into collections, avoiding any need to move objects to the lab. Additionally, the apparatus is able to analyze oversize artifacts. This unit will complement the table-top Raman instrument housed in Geology and will expand the suite of non-destructive techniques the EAF can apply to museum objects.
April 5, 2024