Determination of food preservatives and saccharin by high-performance liquid chromatography.
The quantitative analysis of benzoic and sorbic acid, methyl, ethyl and propyl esters of p-hydroxybenzoic acid and saccharin in foodstuffs is described. These compounds are quantitatively extracted with disposable clean-up columns packed with Extrelut and simultaneously determined by high-performance liquid chromatography on reversed-phase columns. Complicated matrices such as cheese, cake, ketchup and chocolate were tested and recoveries were generally better than 95% in the concentration ranges normally used in the food industry.
D001565:Benzoates / Q000032:analysis; D002851:Chromatography, High Pressure Liquid; D005504:Food Analysis; D005520:Food Preservatives / Q000032:analysis*; D062385:Hydroxybenzoates / Q000032:analysis; D012439:Saccharin / Q000032:analysis*; D013011:Sorbic Acid / Q000032:analysis
D001565:Benzoates; D005520:Food Preservatives; D062385:Hydroxybenzoates; D012439:Saccharin; D013011:Sorbic Acid