2005•Unpublished venueRequires access

Determination of Sorbic Acid and Benzoic Acid in Beverage by Capillary Column Gas Chromatography with Splitless Injecting samples

Wang Wen-fang

Abstract

A novel method was studied for the determination of sorbic acid and benzoic acid in beverage by gas chromatography with FID, using splitless/split mode of injecting samples, FFAP capillapy as chromatography separating column and acetone as solvent dissolving extraction leavings. The linear range is 25-300μg/ml. The correlation coefficients were better than 0. 999. The limits of detection were 0. 813μg/ml for sorbic acid and 0. 606μg/ml for benzoic acid. The relative standard deviations for triple analyses samples were not higher than 6. 42%. The recoveries were all above 87. 0%and below 97. 8%.

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Key concepts: Sorbic acid, Benzoic acid, Chemistry, Chromatography, Gas chromatography, Acetone, Detection limit, Solvent