Generation of ethoxide and hydroxide ions in aqueous ethanolic medium by controlled-current electrolysis is suggested for coulometric titration of 2-phenylpropionic acid derivatives. The electroreduction of the carboxylic hydrogen atom leads to the anion by elimination of a hydrogen radical. Potentiometric or conductimetric methods can be used for detection of the end-point.
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The corresponding record at NLM can be accessed at https://www.ncbi.nlm.nih.gov/pubmed/18963554