检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:何小珍[1] 贺冬秀[1] 周进[1] 郭玉[1] 喻翠云[1]
出 处:《现代中药研究与实践》2012年第3期26-28,共3页Research and Practice on Chinese Medicines
基 金:湖南省教育厅基金资助项目(10C1179)
摘 要:目的检测湖南衡阳产野菊花和叶中绿原酸的含量。方法以70%的乙醇为溶剂,用超声法提取野菊花、叶中的绿原酸。以0.04%磷酸水溶液-乙腈为流动相,梯度洗脱,流速为1.0 mL/min,检测波长为327nm,RP-HPLC测定。结果野菊花中绿原酸含量为0.776%、野菊叶中绿原酸含量为1.894%。结论野菊叶中绿原酸的含量明显高于野菊花。Objective To analyse the contents of indicum L.. Methods Chlorogenic acid from the chlorogenic acid from the leaves and flowers of Chrysanthemum leaves and flowers of Chrysanthemum indicum L. was extracted by the method of ultrasonic extraction with 70% ethanol and analysed by RP-HPLC at the wavelength of 327 nm with the flow rate of 1.0 mL/rain and the mobile phase 0.04% H3PO4-acetonitril with gradient elution. Results The contents of chlorogenic acid from the leaves and flowers of Chrysanthemum indicum L. were 1.88% and 0. 770%, respectively. Conclusion The content of chlorogenic acid from the leaves was higer than those from the flowers of Chrysanthemum indicum L..
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:18.117.114.211