General view of a Perkin-Elmer Grating Infrared Spectrophotometer in use at a Calgon Water Management laboratory facility. Per notations accompanying the photograph, the spectrophotometer is being used to characterize and identify chemicals and deposits from water systems. The female technician visible in the photograph is unidentified.
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Perkin-Elmer Corporation. “Perkin-Elmer Infrared Spectrophotometer in Use at Calgon Water Management Laboratory,” 1970–1979. Photographs from the Perkin-Elmer-Applera Collection, Box 6. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/k35695206.
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