【摘要】 建立了一种活性炭吸附-气相色谱快速准确分析葡萄酒主要芳香成分的方法。首先按一定比例在葡萄酒中加入活性炭吸附葡萄酒中单宁、色素等不挥发性物质,酒液经过聚偏氟乙烯微孔滤膜过滤得澄清无色溶液。然后将处理过的酒液进行气相色谱分析,通过建立特殊的标准曲线,能够快速准确地回归出原酒在未经活性炭处理前香味组分的含量。该文还利用特征区色谱图进行了葡萄酒品种的对比界定。更多还原

【Abstract】 A method for rapid and accurate quantitative determination of major aroma compounds from dry wine has been developed.Firstly,active carbon is added into dry wine according to a certain ratio to adsorb involatile substances such as tannin and pigment.The mixture is stirred and deposited before filtration by poly(vinylidene fluoride) membrane.Then the clear and colorless filtrated sample is analyzed directly by GC system.By the specially established calibration curves,the concentration of each aroma compound in dry wine prior to the adsorption can be obtained fast and accurately.Besides,the classification and comparison of different wines can be carried out by the fingerprint area chromatograms.更多还原