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A New Form of Spectrophotometer

Published online by Cambridge University Press:  15 September 2014

J. R. Milne
J. R. Milne
Affiliation:
Edinburgh University
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Abstract

The present paper is the continuation of a note sent to the Society in July of last year, and is for the purpose of describing the developed form of the spectrophotometer whose principle was indicated in that communication.

Type
Proceedings
Information
Proceedings of the Royal Society of Edinburgh , Volume 25 , Issue 1 , 1906 , pp. 338 - 354
Copyright
Copyright © Royal Society of Edinburgh 1906

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References

note * page 338 Proc. Roy. Soc. Edin., vol. xxiv. p. 496, 1903.

note † page 338 See former note.

note * page 341 In this connection see a paper entitled “On the Absorption Spectra of some Copper Salts in Aqueous Solution,” by Thomas Ewan, B.Sc, Ph.D., Phil. Mag. (5), No. 203, p. 331, April 1892.

note * page 344 It will be recollected that the minimum distance between an object and the image of it formed by a convergent lens is equal to four times the focal length of the lens; the divided lens has been placed at a distance of twice its focal length from the two spectra p and q (fig. 4), so that the telescope tube may be as short as possible.

note * page 348 As employed, for example, by Messrs Hilger, Ltd., on certain of their spectrometers.