【摘 要】
：
The five anthraquinones compounds(including aloe-emodin,rhein,emodin,chrysophanol andphyscion) are defined as the main effective components in rhubarb(Dahuang in Chinese,one of the commonly used Chine
【机 构】
：
College of Chemistry and Molecular Engineering,Zhengzhou university,Zhengzhou
【出 处】
：
43rd International Symposium on High Performance Liquid Phas
论文部分内容阅读
The five anthraquinones compounds(including aloe-emodin,rhein,emodin,chrysophanol andphyscion) are defined as the main effective components in rhubarb(Dahuang in Chinese,one of the commonly used Chinese herbal medicines).In this paper,a simple and effective solid-phase extraction and cleanup method based on bis(tetraoxacalix[2]arene[2]triazine) modified silica[1] as sorbent was developed for the determination of main anthraquinones in human urine.Parameters of the SPE procedure that affecting extraction efficiency,including the amount of sorbent,sample pH,flow rate of the sample,composition and volume of washing solution,eluent volume,were optimized.
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