多壁碳纳米管对甘草中3种有效成分的选择性吸附  

The Adsorptions of Three Licorice Derivatives by Multi-walled Carbon Nanotubes

作　　者：赵洁[1] 李超鹏[2] 韩博[1] 陈文[1] 

机构地区：[1]石河子大学药学院,石河子832000 [2]石河子大学医学院第一附属医院药剂科

出　　处：《应用化学》2011年第11期1305-1310,共6页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金资助项目(30960515);石河子大学自然科学技术创新项目(ZRKX2008064;ZRKX2008067)

摘　　要：考察了多壁碳纳米管(MWNTs)对3种甘草有效成分异甘草苷、甘草苷和甘草酸的吸附性能。分别用紫外分光光度法和HPLC法测定了吸附前后溶液中异甘草苷、甘草苷、甘草酸的含量,考察了静态吸附实验时间、料液起始浓度、溶液体积和pH值对各成分吸附的影响。结果显示,MWNTs对甘草中3种主要有效成分的吸附量明显不同,对异甘草苷的吸附远大于甘草苷和甘草酸,并且不存在竞争吸附,具有明显的选择性吸附特点。The adsorptions of three licorice derivatives including,isoliquiritin,liquiritin and glycyrrhizic acid on multi-walled carbon nanotubes（MWNTs）,were investigated using UV and HPLC techniques.The effects of adsorption time,initial concentration,solution volume and its pH value on the adsorption of ciprofloxacin are examined.MWNTs have totally different adsorptive capacities toward the three main components.In the multi-component competitive adsorption examination,a noncompetitive adsorption process was observed.The adsorption capacity of MWNTs for isoliquiritin is higher than those for liquiritin and glycyrrhizic acid.MWNTs may be potentially applied to the separation and purification of isoliquiritins.

关 键 词：多壁碳纳米管 甘草提取物中的有效成分 选择性吸附 

分 类 号：O647.3[理学—物理化学]