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机构地区:[1]北京化工大学理学院,北京100029 [2]青海师范大学化学系,西宁810008
出 处:《应用化学》2009年第7期872-874,共3页Chinese Journal of Applied Chemistry
摘 要:采用溶剂浮选分离富集-HPLC测定了茵陈水煎液中的滨蒿内酯。考察了浮选溶剂、N2气流速、试液pH值、浮选时间及电解质NaCl等因素对浮选效果的影响,确定了最佳浮选条件。在最佳条件下加标回收率为92.31%~99.97%,RSD=3.20%,可满足实际样品的分析。Scoparone was separated and concentrated from artemisia capiUaris thunb by solvent sublation and determined with high-performance liquid chromatography (HPLC). The experimental conditions such as solution pH, type of solvent, nitrogen flow rate and sublation time were optimized for efficient sublation. The recoveries ranged from 92.31% to 99. 97% under the optimal conditions; the RSD value for 5 replicate measurements of the sample was 3.20%.
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