PHOTO ELECTRIC ABSORBIOMETER, 1950's

Using the 'Spekker' Principal and used for the analyses of Iron. A known sample is placed on one side of the lamp, and the specimen on the other. Filters are added, and the refraction of light is used to measure the unknown sample against the known one, using a Galvanometer. This Field of research is associated with Spectrometry

Donated by Ken Willis

A0912