摘要
在非质子极性溶剂-二甲基乙酰胺中,室温下用碘乙烷与C_1—C_6脂肪酸及乳酸的四甲基铵盐反应制备各酸相应的乙酯。乙酯在15%的邻苯二甲酸二壬酯与6%的土温-80混合固定液填充柱上获得满意分离。用本法测定饮料酒中的低沸点有机酸含量,简便、快速、准确。
The ethyl esters of C_1-C_6. fatty acids and lactic acid formed in ethyl esterification reaction, areseparated on a column packed with stationary liquid composed of 15% dinonyl phthalate and 6%Tween-80 by gas chromatogrphy.
关键词
气相色谱
有机酸分析
酯化
酒
Gas chromatography
Organic acids analysis
Esterifications of organic acids
Wine analysis
