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首页> 外文期刊>Journal of the Institute of Brewing >Determination of Ethyl Carbamate in Sake Using Headspace Solid Phase Microextraction
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Determination of Ethyl Carbamate in Sake Using Headspace Solid Phase Microextraction

机译：顶空固相微萃取法测定清酒中的氨基甲酸乙酯

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摘要

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 μg/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.
机译：已经开发和优化了测定酒精饮料中氨基甲酸乙酯的分析方法。采用了顶空固相微萃取（HS-SPME）作为萃取技术和GC / MS作为测定技术的组合。分析了溶于乙醇溶液的分析级氨基甲酸乙酯，以确定最佳分析条件。加入氨基甲酸乙酯-d_5作为内标。研究了以下HS-SPME条件：纤维固定相的类型，乙醇含量，样品量和提取时间。优化的程序显示，检出限，相对标准偏差和回收率分别为6.7μg/ L，0.4-2.0％和103.6-107.6％。这种新方法的精度与以前的分析相当。最后，将开发的方法用于清酒中氨基甲酸乙酯的分析。

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