Beckman 2342-1 UV Phototube
Photodétecteur UV
Fotozelle UV

For Beckman DU spectrophotometer.

The DU spectrophotometer or Beckman DU, introduced in 1941, was the first commercially viable scientific instrument for measuring the amount of ultraviolet light absorbed by a substance.
This model of spectrophotometer enabled scientists to easily examine and identify a given substance based on its absorption spectrum, the pattern of light absorbed at different wavelengths.
Approximately 30,000 DU spectrophotometers were manufactured and sold between 1941 and 1976.

 

Hauteur • Height • Höhe : 91 mm • 3" 5/8
Diamètre • Diameter • Durchmesser : 29 mm • 1" 1/8

 

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