This application note describes the analysis of preservatives in foods. Preservatives are used to suppress the growth of microorganisms that cause spoilage. The following preservatives were analyzed in accordance with the Food Sanitation Inspection Guidelines: Benzoic acid, sorbic acid, and dehydroacetic acid.
The elution order was determined for highly water-soluble saccharin (a sweetener) used as a reference.
The results show excellent data for the analysis of preservatives.