The use of 7-methylindole in the antimony trichloride colour test for vitamin A
- 1 January 1932
- journal article
- research article
- Published by Portland Press Ltd. in Biochemical Journal
- Vol. 26 (4), 1197-1201
- https://doi.org/10.1042/bj0261197
Abstract
A trace of 7-methylindole in concentrates or in cod-liver oils inhibits the capacity to give the blue color in proportion to the amount present. The ultra-violet absorption spectrum of A discloses 1 absorbing entity while the color test reveals 2 chromogenic mechanisms.This publication has 6 references indexed in Scilit:
- The determination of vitamin A in cod-liver oils (a) biologically, (b) chemically, (c) physically, with a statistical examination of the resultsBiochemical Journal, 1931
- The Mittelmann process for treating fish-liversBiochemical Journal, 1931
- Spectrographic data concerning vitamin A and liver oilsBiochemical Journal, 1931
- The antimony trichloride colour test and the ultra-violet absorption of liver oils and concentratesBiochemical Journal, 1931
- Specificity in tests for vitamin A. A new conception of the chromogenic constituents of fresh and aged liver oilsBiochemical Journal, 1930
- The reaction of antimony trichloride with cod-liver oil and its unsaponifiable fractionBiochemical Journal, 1930