Micro-method for estimating vitamin A by the Carr-Price reaction
- 1 September 1943
- journal article
- research article
- Published by Portland Press Ltd. in Biochemical Journal
- Vol. 37 (3) , 425-429
- https://doi.org/10.1042/bj0370425
Abstract
The reaction mixture (0.01-0.03 cc.) is photographed through light filters together with a series of permanent standards and the film analysed electrophotometrically. The range of utility of the method is 0.06-0.4 i.u. of the vit. A. Fading curves observed were in agreement with curves calculated on the basis of a first order reaction both for color development and for fading. If the conc. of vit. A in the blood is calculated from the maximum color obtained the error due to different fading rates will generally not be greater than 5%.This publication has 4 references indexed in Scilit:
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