Automated analysis of benzoic acid in food: colorimetric determination after continuous volatilization.

  • H W van Gend
  • Published 1975 in
    Zeitschrift fur Lebensmittel-Untersuchung und…

Abstract

A method is developed to determine benzoic acid colorimetrically with the Technicon AutoAnalyzer. After a selective hydroxylation of benzoic acid by means of hydrogen peroxide and a catalyzing reagent consisting of a buffered solution of cupric ion, catechol and sorbic acid, a reaction follows with 4-aminoantipyrine. The reddish brown reaction product… (More)

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Cite this paper

@article{Gend1975AutomatedAO, title={Automated analysis of benzoic acid in food: colorimetric determination after continuous volatilization.}, author={H W van Gend}, journal={Zeitschrift fur Lebensmittel-Untersuchung und -Forschung}, year={1975}, volume={158 3}, pages={137-44} }