Skip to Content
You searched for
Search
Format Image Remove constraint Format: Image Subject Chemists Remove constraint Subject: Chemists

Search Constraints

Search Results

    • after 1950 – before 1995

    Stamp depicts profile of Fritz Haber who received the Nobel Prize in Chemistry in 1918 for developing a process to synthesize ammonia from nitrogen and hydrogen gas, which allowed for the large-scale synthesis of…

    • 1979

    Cachet depicts Otto Hahn's equipment and the nuclear fission of uranium atoms. Stamp shows Hahn's diagram of the splitting of the uranium nucleus. Hahn was the Nobel Prize Winner for Chemistry in 1944.

    • 1970s

    General view of an unidentified African-American chemist reviewing the results of an analysis made by a Perkin-Elmer Model 306 Atomic Absorption Spectrophotometer in the research laboratory at the Detroit Edison…

    • 1970s

    General view of Wilson Walker, Chief Chemist at the Ohio Department of Health's Sanitary Chemistry Laboratory, injecting a sample of drinking water into the cylinder of a Perkin-Elmer Heated Graphite Atomizer (HGA). Per…

    • 1970s

    General view of an unidentified chemist using a Perkin-Elmer Model 403 Atomic Absorption Spectrophotometer, in conjunction with the Delves Microsampling System, to test the lead content of a child's blood sample. Per…

    • 1970s

    General view of assistant chemist Lawrence Koerber using a Perkin-Elmer Model 403 Atomic Absorption Spectrophotometer to test an ash sample in a Peabody Coal Company laboratory. Per notations accompanying the…

    • 1970s

    General view of chemist Harvey Beatty operating a Perkin-Elmer Model 503 Atomic Absorption Spectrophotometer at the Kellogg Company Quality Assurance laboratory located in Battle Creek, Michigan. Per notations…

    • 1970s

    Close-up view of chemist Francis Ptak holding a rack of Nessler tubes at a Gascoyne Laboratory facility located in Baltimore, Maryland. A Perkin-Elmer automated, multi-element spectrophotometer is visible in the…

    • 1970s

    General view of chemist Francis Ptak operating a Perkin-Elmer Model 5000 Atomic Absorption Spectrophotometer at a Gascoyne Laboratories facility located in Baltimore, Maryland. Per notations accompanying the photograph,…

    • 1970s

    General view of chemist Abraham Rednor placing a sample in the subambient temperature chamber of a Perkin-Elmer differential scanning calorimeter at the U.S. Army Chemical Test Branch laboratory located in Edgewood,…

    • 1970s

    General view of Drs. S.V. Ting (left) and Russell Rouseff (right) examining the graphed readings of a Perkin-Elmer fluorescence spectrophotometer in a Florida Citrus Department laboratory located in Lake Alfred,…

    • 1970s

    General view of research chemist Dr. Russell Rouseff analyzing the spectrum produced by a Perkin-Elmer fluorescence spectrophotometer in use at the Florida Department of Citrus research laboratory located in Lake…

    • 1970s

    General view of Dr. Peter Jatlow, director of the clinical laboratory, and technologist Ying-Lin T. Gravel examining the graphical output of a Perkin-Elmer fluorescence spectrophotometer in use at the Yale-New Haven…

    • 1970s

    General view of chemist Janet Sheridan placing two oil samples into a Perkin-Elmer double-beam fluorescence spectrophotometer at a Coast Guard Research and Development Center laboratory. Per notations accompanying the…

    • 1970s

    General view of an unidentified chemist operating a Perkin-Elmer gas chromatograph in an Environmental Protection Agency (EPA) Region II laboratory located in Edison, New Jersey. Per notations accompanying the…

    • 1970s

    Close-up view of chemist Lawrence Clark making an adjustment to the recording unit of a Perkin-Elmer Sigma gas chromatography system at the U.S. Army Chemical Test Branch laboratory located in Edgewood, Maryland. Per…

    • 1970s

    General view of chemist Robert Potts inserting a programming card into the heated graphite atomizer (HGA) of a Perkin-Elmer atomic absorption spectrophotometer in use at the State of Virginia's Environmental Laboratory.…

    • 1970s

    General view of Research Chemist S.V. Ting inserting a citrus sample into a Perkin-Elmer Model 457 Grating Infrared Spectrophotometer at a Florida Citrus Department laboratory located in Lake Alfred, Florida. Per…

    • 1970s

    General view of an unidentified chemist examining the graphical output of a Perkin-Elmer Model 621 Grating Infrared Spectrophotometer in use at the Federal Drug Enforcement Administration's Special Testing and Research…

    • 1970s

    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…

    • 1970s

    General view of an unidentified chemist preparing a drug evidence sample for analysis by a Perkin-Elmer Infrared Spectrophotometer in the Columbus Police Department Crime Laboratory. Per notations accompanying the…

    • 1978

    Stamp commemorating the Swedish chemist, Svante Arrhenius (1859-1927), whose portrait is featured on the stamp. Arrhenius is considered by some to be the father of physical chemistry and won the 1903 Nobel Prize in…