【摘 要】
：
The extraction technique basing on superfine homogenizer is an efficient and quick pre-treatment method developed in recent years.In this work, the extracti
【机 构】
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Key Laboratory of Chemistry of Northwestern Plant Resources, CAS / Key Laboratory for Natural Medici
【出 处】
：
第2届大连国际色谱学术报告会、第37届国际高效液相色谱及相关技术会议、第18届全国色谱学术报告会
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The extraction technique basing on superfine homogenizer is an efficient and quick pre-treatment method developed in recent years.In this work, the extraction kinetics of flavonoids from Radix Astragali by using superfine homogenizer was studied by HPLC.Methanol was used as extraction solvent and the effects of solid-liquid ratio, rotate speed and extraction time on the extraction rate were studied by single factor experiments.Then the optimal extraction conditions were found out by orthogonal experiments.The influence of the three major factors in the extraction of flavonoids from Radix Astragali was in the order as: solid-liquid ratio > extraction time > rotate speed.The best extraction conditions included the solid-liquid ratio of 1∶20, 3 min extraction time and rotate speed of 16000 rpm.
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