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

This standard was last reviewed* in 2010.

*ISO standards are reviewed every five years.

Abstract

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).

 

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