General view of Dr. Giovanni Bigalli posed with a Perkin-Elmer Grating Infrared Spectrophotometer at an unidentified laboratory facility. Per notations accompanying the photograph, this spectrophotometer is being used to analyze a sample of peanut oil, part of a series of flavor investigations undertaken by the Hershey Company using assorted Perkin-Elmer instruments.
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Perkin-Elmer Corporation. “Peanut Oil Testing Using Perkin-Elmer Infrared Spectrophotometer,” 1970–1979. Photographs from the Perkin-Elmer-Applera Collection, Box 6. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/r781wg81s.
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