ISO 6557-1:1986 Fruits, vegetables and derived products -- Determination of ascorbic acid -- Part 1: Reference method

standard by International Organization for Standardization, 10/01/1986

Full Description

The method uses the molecular fluorescence spectrometry for the determination of the combined ascorbic and dehydroascorbic acid content. It consists in transforming ascorbic acid into dehydrascorbic acid using activated charcoal, and reacting this with o-phenylendiamine (OPDA).