Determination of Vitamin A in Presence of its Degradation Product by First - Derivative U.V.- Spectrophotometry
- 1 January 1986
- journal article
- research article
- Published by Taylor & Francis in Analytical Letters
- Vol. 19 (9-10) , 1053-1063
- https://doi.org/10.1080/00032718608066282
Abstract
A rapid spectrophotometric method for the determination of retinol palmitate (vitamin A) in the presence of its oxidative degradation product is presented. The method is based on the first-derivative measurement of the peak-trough amplitude at 288 – 336 nm. The mean percentage recovery for mixtures of vitamin A with their respective degradation product was 100(1.0). Graphs of log 0% versus time for vitamin A in 0.1 N hydrochloric acid/isopropanol was a straight line with a slope of −0.0007 min−1. The method has been succesfuly applied to monitor the vitamin stability.Keywords
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