A Simple and Rapid Method for Determination of n-Dibutylphthalate in Imported Vodka by FID-GC and GC/MS

Abstract

A simple and rapid analytical method for the determination of n-dibutylphthalate (DBP) in imported vodka was developed. The method consists of extraction with n-hexane and determination by gas chromatography (FID). The time required for the routine analysis is about 30 min per sample. Recoveries of DBP spiked at levels of 0.5, 3.0 and 5.0 ppm were 98.5, 97.8 and 92.7%, respectively, and the detection limit was 0.1 ppm. DBP was detected in two out of 15 vodka samples at a maximum concentration of 0.2 ppm by application of this method. The presence of DBP in the vodka was confirmed by GC/MS. © 1993, Japanese Society for Food Hygiene and Safety. All rights reserved.