动态超声萃取分光光度法在线测定红花中的总红花黄色素  

Determination of Total Safflower Yellow Pigments in Carthamus tinctorius L.by Dynamic Ultrasonic Extraction Coupled with On-line Spectrophotometric Detection

作　　者：胡秀丽[1] 游景艳[1] 张寒琦[1] 张华蓉[1] 孟祥哲[1] 肖婷婷[1] 范玉贞[1] 王影[1] 于爱民[1] 

机构地区：[1]吉林大学化学学院

出　　处：《高等学校化学学报》2008年第4期690-693,共4页Chemical Journal of Chinese Universities

摘　　要：用动态超声萃取分光光度法在线测定了红花中的红花黄色素,对萃取条件进行了优化.萃取与测定同时进行,大大缩短了样品的分析时间,简化了分析过程.通过与静态超声萃取、振荡萃取和索式萃取进行比较,不仅证明该方法耗时最短,而且样品用量小,萃取产率较高.实际样品分析得到了满意的结果.A dynamic ultrasonic extraction （DUE） coupled with on-line detection by spectrophotometry was proposed for the determination of total safflower yellow pigments （ calculated against safflor yellow A ） in Carthamus tinctorius L. The extraction was performed in a common self-made extraction vessel placed inside an ultrasonic bath and a peristaltic pump was used to deliver the solvent. Several parameters of DUE, including flow rate of extraction solvent, ultrasonic power and sample amount, were optimized. Compared to the off-line method, the on-line approach has the advantages of minimum sample amount（5 mg）, on-line monitoring the extraction process and time-saving（ 10 min） and the method is more convenient for rapid optimization of the extraction process.

关 键 词：超声辅助动态萃取 在线检测 红花黄色素 红花 

分 类 号：O657[理学—分析化学]