摘要
为了同时测定女儿茶中4种儿茶素(DC,EC,GC和EGC)及咖啡因(CAF),对女儿茶质量评判奠定基础,笔者采用伊利特C18(250mm×4.6mm)色谱柱,甲醇-水-乙酸为流动相,流速1ml/min,检测波长278nm,在所选用条件下,各组分理想分离,效果良好。
In order to establish a method for the simultaneous determination of catechins（DC,EC,GC,EGC） and caffeine（CAF） in daughter tea.The obtained data can be used as references for evaluation of tea quality.The study was achieved using a Yilite C18 column with a methanol-water-acetic acid elution system.The flow was detected at a wave length 278 nm and flow rate was 1ml/min.The result is that under the selected analytical condition,the five ingredients in the samples got ideal separation resolution and had good linear relationship.
出处
《中国现代教育装备》
2011年第13期81-82,共2页
China Modern Educational Equipment
基金
泰安市科技局科技发展规划课题项目(编号:20074046)
关键词
茶叶
儿茶素
咖啡因
含量测定
tea
catechins
caffeine（CAF）
determination
