RAPID QUANTITATIVE METHOD FOR SIMULTANEOUS DETERMINATION OF BENZOIC-ACID, SORBIC ACID, AND 4 PARABENS IN MEAT AND NONMEAT PRODUCTS BY LIQUID-CHROMATOGRAPHY

  • 1 January 1985
    • journal article
    • research article
    • Vol. 68  (3) , 488-492
Abstract
A liquid chromatographic (LC) method for the simultaneous determinations of benzoic acid, sorbic acid, and methyl, ethyl, propyl, and butyl parabens (methyl, ethyl, propyl, and butyl-p-hydroxybenzoates) in meat and nonmeat products was developed. Benzoic acid, sorbic acid, and parabens were extracted from meat and nonmeat products with 70% ethanol. After filtration, extracts were analyzed by reverse phase liquid chromatography. Homogeneously ground samples of fresh sausage and hamburger were fortified with benzoic acid, sorbic acid, and each paraben at 5 different concentrations. Average recovery (after discarding outliers) for each perservative at all 5 levels was greater than 95% with a coefficient of variation less than 5%.