气相-内标法测定白兰地中甲醇、乙酸乙酯、糠醛和高级醇  

Development of A GC Internal Standard Method for Simultaneous Determination of Methyl Alcohol,Ethyl Acetate,Furfural and Higher Alcohols in Brandy

作　　者：莫燕霞[1] 殷居易[1] 顾晓俊[1] 陈梅珍[1] 何卫敏 吴维儿 

机构地区：[1]宁波出入境检验检疫局,浙江宁波315800

出　　处：《食品研究与开发》2015年第21期150-152,共3页Food Research and Development

基　　金：宁波市级科技计划项目(2012F1002)

摘　　要：建立了气相-内标标准曲线法同时测定白兰地中甲醇、乙酸乙酯、糠醛、高级醇（正丙醇＋异戊醇＋异丁醇＋正丁醇＋仲丁醇）含量的方法,样品添加内标后直接进样,经CP-Wax 57毛细管色谱柱分离后用FID检测器进行分析。在所建立的最佳试验条件下,白兰地中各组分峰得到有效分离,标准曲线相关系数均在0.999 60以上,回收率在94.9%~117.7%之间。该方法灵敏、易操作、准确可靠,能够对白兰地中甲醇、乙酸乙酯、糠醛、高级醇进行准确的定性定量分析。A method was developed for the determination of the methyl alcohol, ethyl acetate, furfural and higher alcohols（propanol ＋isoamyl alcohol ＋isobutanol ＋n-butanol ＋tert-butyl alcohol）in brandy using GC internal standard method. The samples were directly injected into gas chromatography with internal standard,and separated by CP-Wax 57 capillary column and then detected by FID detector.Under these optimal experimental conditions, the calibration curve for the compounds was in good linearity with a correlation coefficient of upwards 0.999 60. Recovery ratio of the compounds was 94.9 %-117.7 %. The results indicate that this method is handy, fast, veracious and practical for the routine analysis of methyl alcohol, ethyl acetate,furfural and higher alcohols in brandy.

关 键 词：气相-内标标准曲线法 甲醇 乙酸乙酯 糠醛 高级醇 白兰地 

分 类 号：O657.71[理学—分析化学] TS262.38[理学—化学]