ON THE DISTRIBUTION OF VITAMINS A1 AND A2
Open Access
- 20 January 1939
- journal article
- research article
- Published by Rockefeller University Press in The Journal of general physiology
- Vol. 22 (3) , 391-415
- https://doi.org/10.1085/jgp.22.3.391
Abstract
The distribution of vitamins A1 and A2 has been determined in the eye tissues and livers of a number of fishes. The vitamins were differentiated by means of the antimony chloride reaction, which yields with A1 a band at 615–620 mµ and with A2 a band at about 696 mµ. In the retina the presence of vitamin A1 is diagnostic of the operation of a rhodopsin, and vitamin A2 of a porphyropsin cycle.This publication has 5 references indexed in Scilit:
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- On the occurrence and constitution of the 693mμ chromogen (vitamin A2?) of fish liver oilsBiochemical Journal, 1938
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- Specificity in tests for vitamin A. A new conception of the chromogenic constituents of fresh and aged liver oilsBiochemical Journal, 1931