Perkin Elmer double beam infrared spectrophotometer, 1950.
3 4 c m
40cm
actual image size: 32cm x 26cm

Perkin Elmer double beam infrared spectrophotometer, 1950.

Exton, David

© Science Museum / Science & Society Picture Library

Description

Model 21 spectrophotometer made by Perkin Elmer. A spectrophotometer is an instrument for measuring the intensity of light in various parts of the spectrum, especially as transmitted or emitted by a substance or a solution at a particular wavelength.
 

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Image Ref.

10327121
 

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