Some factors which affect the assay of vitamin A by the spectrographic method
- 1 January 1934
- journal article
- research article
- Published by Portland Press Ltd. in Biochemical Journal
- Vol. 28 (2), 472-475
- https://doi.org/10.1042/bj0280472
Abstract
The absorption of cod liver oils at 3280 A may be increased by aeration, and from the curves relating the absorption with the time of aeration, the amount of irrelevant absorption at 3280 A may be deduced. The need for the examination of the unsaponifiable extract of the oils is emphasized.This publication has 6 references indexed in Scilit:
- Determination of vitamin A in oils by a spectrophotometric method.1933
- Absorption spectra in relation to the constituents of fish oilsBiochemical Journal, 1933
- The absorption spectra of the mixed fatty acids from cod-liver oilBiochemical Journal, 1933
- The determination of vitamin A in cod-liver oils, (a) biologically, (b) chemically, (c) physically, with a statistical examination of the resultsBiochemical Journal, 1932
- 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