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顶空气相色谱法测定泥螺中的酒精度
引用本文:薛萍.顶空气相色谱法测定泥螺中的酒精度[J].安徽农业科学,2011,39(1):176+179-176,179.
作者姓名:薛萍
作者单位:广东轻工职业技术学院轻化系;
基金项目:广东省科技计划项目(2007B03010300); 广东省湛江市科技计划项目(2008-4)
摘    要:目的]建立了顶空气相色谱法测定泥螺中酒精度的方法。方法]将样品密封于顶空瓶,在80℃达到气液平衡后用气相色谱/氢火焰离子化检测器(GC/FID)进行测定。结果]该方法在0.5%~25.0%的范围内线性关系良好,r=0.9996,回收率为98.0%~104.0%,最低检测限为0.01%,变异系数(CV)为1.49%。结论]该方法可靠、快速、简单,适用于液体、固体产品中乙醇含量的测定。

关 键 词:泥螺  酒精度  顶空气相色谱法

Determination of Ethanol in Clay Snail by Headspace-Gas Chromatography
XUE Ping.Determination of Ethanol in Clay Snail by Headspace-Gas Chromatography[J].Journal of Anhui Agricultural Sciences,2011,39(1):176+179-176,179.
Authors:XUE Ping
Institution:XUE Ping (Department of Chemical Engineering,Guangdong Industry Technical College,Guangzhou,Guangdong 510300)
Abstract:Objective]A headspace-gas chromatography method was established for determination of ethanol in clay snail.Method]The sample solution was placed in a headspace sample vial at 80 ℃ and the equilibrated vapor phase of the solution was then measured by GC/FID.Result]The linearity of ethanol were good in the range of 0.5%-25.0% with r=0.999 6.The average recovery of ethanol was 98.0%-104.0%,CV was 1.49%.The detection limit lies 0.01%.Conclusion] This method is simply,rapid,accurate and reproducible,and can be used for determination of content of ethanol in product of solid or liquid.
Keywords:Clay snail  Ethanol  Headspace-gas chromatography  
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