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Document Type

Research

Abstract

This is a continuation of the work previously reported by Woodrow and Cunningham (Phys. Rev., vol. 35, p. 125, Jan. 1930) on the absorption spectrum of several common sources of vitamin A. Through the kindness of Dr. Morton of the University of Liverpool, it has been possible to investigate the absorption spectra of much more concentrated sources of vitamin A. Slight changes which have been made in the arrangement of the photoelectric spectrophotometer have given more dependable results, partly because they have greatly reduced the destruction of the vitamin A by the ultra-violet light used in taking the measurements. Prominent bands have been found at 310 and 328 mµ. with minor bands at 323 and 340 mμ. The 328 mμ band was much stronger than the same band with weaker sources of vitamin A.

Publication Date

1930

Journal Title

Proceedings of the Iowa Academy of Science

Volume

37

Issue

1

First Page

310

Last Page

310

Copyright

© Copyright 1930 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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