Abstract

An efficient group separation of various phenolic compounds from aromatic carboxylic acids can be achieved on the acetate form of an anion-exchange resin in aqueous ethanol (e.g. 80% w w ) acidified with acetic acid (0.01–0.1 M). The carboxylic acids are then eluted at high concentration of acetic acid. The method permits separation of individual compounds in the same run.

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