title: Microwave-assisted method for simultaneous extraction and hydrolysis for determination of flavonol glycosides in Ginkgo foliage using Brönsted acidic ionic-liquid [HO(3)S(CH(2))(4)mim]HSO(4) aqueous solutions.
abstract: The Brönsted acidic ionic-liquid [HO(3)S(CH(2))(4)mim] HSO(4), a novel dual catalyst-solvent, has been successfully applied in simultaneous microwave-assisted extraction and hydrolysis for the determination of flavonol glycosides in Ginkgo foliage. The parameters, namely the [HO(3)S(CH(2))(4)mim]HSO(4) concentration, microwave-irradiation power, microwave-irradiation time, and solid-liquid ratio, were optimized. The optimum conditions were: an amount of 1.5 M [HO(3)S(CH(2))(4)mim]HSO(4), a microwave-irradiation power of 120 W, an irradiation time of 15 min, and a solid-liquid ratio of 1:30 g/mL. Compared with traditional methods the proposed approach demonstrates higher efficiency in a shorter operating time, and is an efficient, rapid, and simple sample preparation method.
authors.affiliation: State Engineering Laboratory for Bio-Resource Eco-Utilization, Northeast Forestry University, Harbin 150040, China.
authors.forename: Huanhuan
authors.initials: H
authors.lastname: Yao
authors.affiliation: State Engineering Laboratory for Bio-Resource Eco-Utilization, Northeast Forestry University, Harbin 150040, China.
authors.forename: Xinxuan
authors.initials: X
authors.lastname: Du
authors.affiliation: State Engineering Laboratory for Bio-Resource Eco-Utilization, Northeast Forestry University, Harbin 150040, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Yang
authors.affiliation: State Engineering Laboratory for Bio-Resource Eco-Utilization, Northeast Forestry University, Harbin 150040, China.
authors.forename: Wenjie
authors.initials: W
authors.lastname: Wang
authors.affiliation: State Engineering Laboratory for Bio-Resource Eco-Utilization, Northeast Forestry University, Harbin 150040, China.
authors.forename: Fengjian
authors.initials: F
authors.lastname: Yang
authors.affiliation: State Engineering Laboratory for Bio-Resource Eco-Utilization, Northeast Forestry University, Harbin 150040, China.
authors.forename: Chunjian
authors.identifier: 0000-0003-2827-1999
authors.initials: C
authors.lastname: Zhao
authors.affiliation: State Engineering Laboratory for Bio-Resource Eco-Utilization, Northeast Forestry University, Harbin 150040, China.
authors.forename: Xiangdong
authors.initials: X
authors.lastname: Meng
authors.affiliation: State Engineering Laboratory for Bio-Resource Eco-Utilization, Northeast Forestry University, Harbin 150040, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Zhang
authors.affiliation: State Engineering Laboratory for Bio-Resource Eco-Utilization, Northeast Forestry University, Harbin 150040, China.
authors.forename: Yuangang
authors.initials: Y
authors.lastname: Zu
mesh_terms: D044948:Flavonols / Q000737:chemistry* / Q000302:isolation & purification; D020441:Ginkgo biloba / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D006868:Hydrolysis; D052578:Ionic Liquids / Q000737:chemistry*; D008872:Microwaves; D018515:Plant Leaves / Q000737:chemistry*
chemical_list: D044948:Flavonols; D006027:Glycosides; D052578:Ionic Liquids