A simple, sensitive and reproducible spectrophotometric method is developed for the determination of propyl gallic acid. This method is based on oxidative coupling reaction between propyl gallic acid with orcinol in the presence of Hydrogen peroxide and enzyme horseradish peroxidase to produce colored chromogen (lmax at 550 nm). Results of analysis were validated statistically and by recovery studies. This method is successfully employed for the determination of propyl gallic acid in oils.
Propyl gallic acid, orcinol, Visible Spectrophotomety, Beer’s Law
© The Author(s) 2008. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License which permits unrestricted use, sharing, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.