摘要
采用HPLC反相色谱法分离技术,将不同种类,不同酿造工艺,不同原料的黄酒,经Sep-Pak C18柱预处理,在12分钟内,把其中的乳酸,醋酸,琥珀酸完全分离定量。其中乳酸含量为主,醋酸次之,琥珀酸甚少。 应用HPLC分离技术对黄酒中各种有机酸的分离测定至今未见过报道,1989年胡国栋、刘峰应用GC分离技术对黄酒中不挥发酸(包括氨基酸和不挥发有机酸)进行了大量的分析测定,但由于该方法预处理较复杂,这给大量样品的分析测定带来困难。我们应用反相液相色谱法,用最为普遍的ODS-C18柱子,以磷酸盐缓冲液作为流动相。酒样经Sep-Pak C18柱(下称SP柱)预处理后,直接进样分离定量。在12分钟内将黄酒中乳酸,醋酸,琥珀酸完全分离开。经多种不同黄酒样品的分离结果证明:本方法是测定黄酒中各种有机酸的快速、有效的定量测定法。
A method for determination of organic acid in rice wine by reversephase HPLC is described. The sample is pre-treated through Sep-Pak C18 precolumn. Lactic acid,acetic acid and succinic acid in rice wines can be completely isolated and identified quantitatively. The analytical results of organic acid in rice wines which has been produced with different raw material and processing indicated that the content of lactic acid is leading one ,the secondary is acetic acid,succinic acid is only a small amount.
出处
《食品与发酵工业》
CAS
CSCD
北大核心
1991年第5期41-44,9,共5页
Food and Fermentation Industries
