A continuation of our previous work on the ultra-violet absorption spectra of substances showing vitamin A activity, tends to further substantiate the evidence that the absorption band in the regions 325-330 m.μ., which Morton and Heilbron have shown to be characteristic of vitamin A in animal fats, also characterizes vegetable compounds containing the growth promoting factor.
Proceedings of the Iowa Academy of Science
©1932 Iowa Academy of Science, Inc.
Philipson, J. B. and Woodrow, Jay W.
"Absorption Spectra Characteristic of Vitamin A in Animal and Vegetable Oils,"
Proceedings of the Iowa Academy of Science, 39(1), 220-220.
Available at: https://scholarworks.uni.edu/pias/vol39/iss1/61