In the event of a government shutdown, American History will remain OPEN through at least Saturday, October 7, by using prior year funds. Visit si.edu for updates.

Spectrophotometer

Spectrophotometer

Usage conditions apply
Downloads
Description
Arnold O. Beckman, a professor of chemistry at the California Institute of Technology, established National Technical Laboratories in Pasadena, Ca., in 1935. That firm introduced the DU spectrophotometer in 1941. Using quartz rather than ordinary glass, this instrument extended observations into the near ultra-violet. The form remained on the market until 1976, with thousands of examples sold.
This early example came from Beckman Instruments. The inscription on an oval tag reads “BECKMAN / MODEL DU SERIAL 2960 QUARTZ SPECTROPHOTOMETER / NATIONAL TECHNICAL LABORATORIES SOUTH PASADENA, CALIFORNIA, U.S.A.”
Location
Currently not on view
Object Name
Spectrophotometer
spectrophotometer
date made
1940s
maker
National Technical Laboratories
place made
United States: California, Pasadena
Measurements
overall: 22 cm x 81 cm x 28 cm; 8 11/16 in x 31 7/8 in x 11 in
overall: 8 13/16 in x 31 15/16 in x 10 1/4 in; 22.38375 cm x 81.12125 cm x 26.035 cm
ID Number
1981.0816.1
catalog number
1981.0816.1
accession number
1981.0816
Credit Line
Gift of Beckman Instruments
See more items in
Medicine and Science: Chemistry
Data Source
National Museum of American History
Nominate this object for photography.   

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.

Note: Comment submission is temporarily unavailable while we make improvements to the site. We apologize for the interruption. If you have a question relating to the museum's collections, please first check our Collections FAQ. If you require a personal response, please use our Contact page.