General view of an unidentified chemist preparing an oil sample for analysis by a Perkin-Elmer Model 727 Infrared Spectrophotometer in a mobile laboratory for the Environmental Protection Agency's Oil and Hazardous Materials Spills branch. Per notations accompanying the photograph, the instrument is being used for spill-site analysis of petroleum oils containing toxicants.
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Perkin-Elmer Corporation. “Perkin-Elmer Infrared Spectrophotometer in Use at EPA Mobile Laboratory,” 1970–1979. Photographs from the Perkin-Elmer-Applera Collection, Box 6. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/5t34sk48b.
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