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Subject Citrus fruits Remove constraint Subject: Citrus fruits

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    • 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 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 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,…

    • circa 1975

    Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate way to measure the acidity of his product. The resulting instrument kicked off…