摘要
建立了由亲水性离子液体四氟硼酸1-丁基-3-甲基咪唑（[BMIm]BF4）和（NH4）2SO4形成的双水相体系萃取分离芦丁的新方法。分别研究了盐的浓度、离子液体浓度、芦丁加入量和溶液pH值对芦丁萃取率的影响。结果表明，（NH4）2SO4加入量在1．5g，离子液体加入量在1．5～2．0mL，芦丁加入量在1．0～1．5mL，溶液酸度在pH4～6范围，离子液体双水相体系对芦丁有较高的萃取率（E％〉90％）。
A new aqueous two-phase system for the extraction and separation of Rutin,which was formed by a room temperature water-soluble ionic liquid BF4(1-butyl-3-methylimidazolium tetrafluoroborate) and phase-forming salt(NH4)2SO4,was studied and established.The effects of concentrations of ionic liquid,salt,Rutin and the PH value on the extraction efficiency1 were analyzed systematically.The findings showed that the ionic liquid aqueous two-phase system had the highest extraction efficiency(E%>90) with the solution by putting in 1.5g of(NH4)2SO4,1.5~2.0mL of ionic liquid,1.0~2.0mL of rutin,with the range of PH values 4~6.
出处
《云南中医中药杂志》
2008年第5期44-45,共2页
Yunnan Journal of Traditional Chinese Medicine and Materia Medica
基金
教育部科学技术研究基金重点资助项目(编号:207108)
关键词
离子液体
双水相
芦丁
萃取分离
ionic liquid,aqueous two-phase,Rutin,extraction
separation
