期刊
JOURNAL OF THE INSTITUTE OF BREWING
卷 116, 期 2, 页码 177-181出版社
INST BREWING
DOI: 10.1002/j.2050-0416.2010.tb00415.x
关键词
alcoholic beverage; ethyl carbamate (EC); HS-SPME; sake
An analytical method for the determination of ethyl carbamate in alcoholic beverages has been developed and optimized. A combination of headspace solid phase microextraction (HS-SPME), as the extraction technique, and GC/MS, as the determination technique, was utilized. Analytical grade ethyl carbamate dissolved in ethanol solution was analyzed to determine the optimum analytical conditions. Ethyl carbamate-d(5) was added as an internal standard. The following HS-SPME conditions were investigated: type of stationary phase of the fibre, ethanol content, sample volume and extraction time. The optimized procedure showed that the detection limit, relative standard deviation, and recovery were 6.7 mu g/L, 0.4-2.0%, and 103.6-107.6%, respectively. The precision of this new method was equivalent to previous analyses. Finally, the developed method was applied to the analysis of ethyl carbamate in sake.
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