| 食醋中乙醇含量的测定 |
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| 引用本文： | 李艳清,付大友,王蓉.食醋中乙醇含量的测定[J].四川理工学院学报(自然科学版),2009,22(1). |
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| 作者姓名： | 李艳清 付大友 王蓉 |
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| 作者单位： | 四川理工学院材料与化学工程学院,四川,自贡,643000 |
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| 摘 要： | 文章采用顶空气相色谱法,对多种市售食醋中的乙醇进行了定量分析。方法是在保留时间定性的基础上,用单点校正法进行定量。结果显示,在所测定的食醋样品中乙醇的含量一般在1.19mg/mL~3.37mg/mL之间,实验的相对标准偏差为1.4%~9.7%,回收率为91.0%~104.9%。为研究各种食醋的香气成分提供了简便、可靠的检测方法。
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| 关 键 词： | 食醋 乙醇 顶空气相色谱法 |
Determination of Alcohol Content in Vinegar |
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| LI Yan-qing,FU Da-you,WANG Rong.Determination of Alcohol Content in Vinegar[J].Journal of Sichuan University of Science & Engineering:Natural Science Editton,2009,22(1). |
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| Authors: | LI Yan-qing FU Da-you WANG Rong |
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| Institution: | School of Material and Chemical Engineering;Sichuan University of Science & Engineering;Zigong 643000;China |
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| Abstract: | The content of alcohol in many vinegar samples on the market was determined by headspace gas chromatography.The qualitative method was the retention time.And the quantitative method of single-point correction was used to calculate the content of alcohol in vinegar.The results showed that the content of alcohol in vinegar samples was between 1.19mg/mL and 3.37mg/mL.The relative standard deviation was 1.4%～9.7%,and the recovery was from 91.0% to 104.9%.A simple and convenient method was provided for the determination of fragrance compositions' content in different kinds of vinegar samples. |
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| Keywords: | vinegar alcohol headspace gas chromatography |
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